USN-8644-3

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Source
https://ubuntu.com/security/notices/USN-8644-3
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8644-3.json
JSON Data
https://api.test.osv.dev/v1/vulns/USN-8644-3
Upstream
Related
Published
2026-08-27T21:39:06Z
Modified
2026-08-31T17:27:36Z
Summary
linux-azure, linux-azure-4.15, linux-azure-fips vulnerabilities
Details

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems:

  • File systems infrastructure;
  • OCFS2 file system;
  • B.A.T.M.A.N. meshing protocol;
  • SCTP protocol;
  • TIPC protocol; (CVE-2026-43071, CVE-2026-52914, CVE-2026-52993, CVE-2026-53043, CVE-2026-53224, CVE-2026-53246, CVE-2026-53309)
References

Affected packages

Ubuntu:Pro:14.04:LTS / linux-azure

Package

Name
linux-azure
Purl
pkg:deb/ubuntu/linux-azure?arch=source&distro=esm-infra-legacy%2Ftrusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
4.15.0-1206.221~14.04.1

Affected versions

4.*
4.15.0-1023.24~14.04.1
4.15.0-1030.31~14.04.1
4.15.0-1031.32~14.04.1
4.15.0-1032.33~14.04.2
4.15.0-1035.36~14.04.2
4.15.0-1036.38~14.04.2
4.15.0-1037.39~14.04.2
4.15.0-1039.41~14.04.2
4.15.0-1040.44~14.04.1
4.15.0-1041.45~14.04.1
4.15.0-1042.46~14.04.1
4.15.0-1045.49~14.04.1
4.15.0-1046.50~14.04.1
4.15.0-1047.51~14.04.1
4.15.0-1049.54~14.04.1
4.15.0-1050.55~14.04.1
4.15.0-1051.56~14.04.1
4.15.0-1052.57~14.04.1
4.15.0-1055.60~14.04.1
4.15.0-1056.61~14.04.1
4.15.0-1057.62~14.04.1
4.15.0-1059.64~14.04.1
4.15.0-1060.65~14.04.1
4.15.0-1061.66~14.04.1
4.15.0-1063.68~14.04.1
4.15.0-1064.69~14.04.1
4.15.0-1066.71~14.04.1
4.15.0-1067.72~14.04.1
4.15.0-1069.74~14.04.1
4.15.0-1071.76~14.04.1
4.15.0-1074.79~14.04.1
4.15.0-1077.82~14.04.1
4.15.0-1082.92~14.04.1
4.15.0-1083.93~14.04.1
4.15.0-1089.99~14.04.1
4.15.0-1091.101~14.04.1
4.15.0-1092.102~14.04.1
4.15.0-1093.103~14.04.1
4.15.0-1095.105~14.04.1
4.15.0-1096.106~14.04.1
4.15.0-1098.109~14.04.1
4.15.0-1100.111~14.04.1
4.15.0-1102.113~14.04.1
4.15.0-1103.114~14.04.1
4.15.0-1106.118~14.04.1
4.15.0-1108.120~14.04.1
4.15.0-1109.121~14.04.1
4.15.0-1110.122~14.04.1
4.15.0-1111.123~14.04.1
4.15.0-1112.124~14.04.1
4.15.0-1113.126~14.04.1
4.15.0-1114.127~14.04.1
4.15.0-1115.128~14.04.1
4.15.0-1118.131~14.04.1
4.15.0-1121.134~14.04.1
4.15.0-1122.135~14.04.1
4.15.0-1123.136~14.04.1
4.15.0-1124.137~14.04.1
4.15.0-1125.138~14.04.1
4.15.0-1126.139~14.04.1
4.15.0-1127.140~14.04.1
4.15.0-1129.142~14.04.1
4.15.0-1130.143~14.04.1
4.15.0-1131.144~14.04.1
4.15.0-1133.146~14.04.1
4.15.0-1134.147~14.04.1
4.15.0-1136.149~14.04.1
4.15.0-1137.150~14.04.1
4.15.0-1138.151~14.04.1
4.15.0-1139.152~14.04.1
4.15.0-1142.156~14.04.1
4.15.0-1145.160~14.04.1
4.15.0-1146.161~14.04.1
4.15.0-1149.164~14.04.1
4.15.0-1150.165~14.04.1
4.15.0-1151.166~14.04.1
4.15.0-1153.168~14.04.1
4.15.0-1157.172~14.04.2
4.15.0-1158.173~14.04.1
4.15.0-1159.174~14.04.1
4.15.0-1162.177~14.04.1
4.15.0-1163.178~14.04.1
4.15.0-1164.179~14.04.1
4.15.0-1165.180~14.04.1
4.15.0-1166.181~14.04.1
4.15.0-1167.182~14.04.1
4.15.0-1168.183~14.04.1
4.15.0-1169.184~14.04.1
4.15.0-1170.185~14.04.1
4.15.0-1171.186~14.04.1
4.15.0-1172.187~14.04.1
4.15.0-1173.188~14.04.1
4.15.0-1174.189~14.04.1
4.15.0-1175.190~14.04.1
4.15.0-1176.191~14.04.1
4.15.0-1177.192~14.04.1
4.15.0-1178.193~14.04.1
4.15.0-1179.194~14.04.1
4.15.0-1180.195~14.04.1
4.15.0-1181.196~14.04.1
4.15.0-1182.197~14.04.1
4.15.0-1183.198~14.04.1
4.15.0-1184.199~14.04.1
4.15.0-1185.200~14.04.1
4.15.0-1186.201~14.04.1
4.15.0-1187.202~14.04.1
4.15.0-1188.203~14.04.1
4.15.0-1189.204~14.04.1
4.15.0-1190.205~14.04.1
4.15.0-1191.206~14.04.1
4.15.0-1192.207~14.04.1
4.15.0-1193.208~14.04.1
4.15.0-1194.209~14.04.1
4.15.0-1195.210~14.04.1
4.15.0-1196.211~14.04.1
4.15.0-1197.212~14.04.1
4.15.0-1199.214~14.04.1
4.15.0-1200.215~14.04.1
4.15.0-1201.216~14.04.1
4.15.0-1202.217~14.04.1
4.15.0-1205.220~14.04.1

Ecosystem specific 

{
    "availability":  "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
    "binaries":  [
        {
            "binary_name":  "linux-azure-cloud-tools-4.15.0-1206",
            "binary_version":  "4.15.0-1206.221~14.04.1"
        },
        {
            "binary_name":  "linux-azure-headers-4.15.0-1206",
            "binary_version":  "4.15.0-1206.221~14.04.1"
        },
        {
            "binary_name":  "linux-azure-tools-4.15.0-1206",
            "binary_version":  "4.15.0-1206.221~14.04.1"
        },
        {
            "binary_name":  "linux-buildinfo-4.15.0-1206-azure",
            "binary_version":  "4.15.0-1206.221~14.04.1"
        },
        {
            "binary_name":  "linux-cloud-tools-4.15.0-1206-azure",
            "binary_version":  "4.15.0-1206.221~14.04.1"
        },
        {
            "binary_name":  "linux-headers-4.15.0-1206-azure",
            "binary_version":  "4.15.0-1206.221~14.04.1"
        },
        {
            "binary_name":  "linux-image-unsigned-4.15.0-1206-azure",
            "binary_version":  "4.15.0-1206.221~14.04.1"
        },
        {
            "binary_name":  "linux-modules-4.15.0-1206-azure",
            "binary_version":  "4.15.0-1206.221~14.04.1"
        },
        {
            "binary_name":  "linux-modules-extra-4.15.0-1206-azure",
            "binary_version":  "4.15.0-1206.221~14.04.1"
        },
        {
            "binary_name":  "linux-tools-4.15.0-1206-azure",
            "binary_version":  "4.15.0-1206.221~14.04.1"
        }
    ]
}

Database specific

cves_map 
{
    "cves":  [
        {
            "id":  "CVE-2026-43071",
            "severity":  [
                {
                    "score":  "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "low",
                    "type":  "Ubuntu"
                }
            ]
        },
        {
            "id":  "CVE-2026-52914",
            "severity":  [
                {
                    "score":  "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                    "type":  "CVSS_V4"
                },
                {
                    "score":  "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "high",
                    "type":  "Ubuntu"
                }
            ]
        },
        {
            "id":  "CVE-2026-52993",
            "severity":  [
                {
                    "score":  "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                    "type":  "CVSS_V4"
                },
                {
                    "score":  "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "critical",
                    "type":  "Ubuntu"
                }
            ]
        },
        {
            "id":  "CVE-2026-53043",
            "severity":  [
                {
                    "score":  "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                    "type":  "CVSS_V4"
                },
                {
                    "score":  "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "high",
                    "type":  "Ubuntu"
                }
            ]
        },
        {
            "id":  "CVE-2026-53224",
            "severity":  [
                {
                    "score":  "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N",
                    "type":  "CVSS_V4"
                },
                {
                    "score":  "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "high",
                    "type":  "Ubuntu"
                }
            ]
        },
        {
            "id":  "CVE-2026-53246",
            "severity":  [
                {
                    "score":  "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N",
                    "type":  "CVSS_V4"
                },
                {
                    "score":  "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "medium",
                    "type":  "Ubuntu"
                }
            ]
        },
        {
            "id":  "CVE-2026-53309",
            "severity":  [
                {
                    "score":  "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
                    "type":  "CVSS_V4"
                },
                {
                    "score":  "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "medium",
                    "type":  "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem":  "Ubuntu:Pro:14.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8644-3.json"

Ubuntu:Pro:16.04:LTS / linux-azure

Package

Name
linux-azure
Purl
pkg:deb/ubuntu/linux-azure?arch=source&distro=esm-infra-legacy%2Fxenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
4.15.0-1206.221~16.04.1

Affected versions

4.*
4.11.0-1009.9
4.11.0-1011.11
4.11.0-1013.13
4.11.0-1014.14
4.11.0-1015.15
4.11.0-1016.16
4.13.0-1005.7
4.13.0-1006.8
4.13.0-1007.9
4.13.0-1009.12
4.13.0-1011.14
4.13.0-1012.15
4.13.0-1014.17
4.13.0-1016.19
4.13.0-1018.21
4.15.0-1013.13~16.04.2
4.15.0-1014.14~16.04.1
4.15.0-1018.18~16.04.1
4.15.0-1019.19~16.04.1
4.15.0-1021.21~16.04.1
4.15.0-1022.22~16.04.1
4.15.0-1023.24~16.04.1
4.15.0-1025.26~16.04.1
4.15.0-1028.29~16.04.1
4.15.0-1030.31~16.04.1
4.15.0-1031.32~16.04.1
4.15.0-1032.33~16.04.1
4.15.0-1035.36~16.04.1
4.15.0-1036.38~16.04.1
4.15.0-1037.39~16.04.1
4.15.0-1039.43
4.15.0-1040.44
4.15.0-1041.45
4.15.0-1042.46
4.15.0-1045.49
4.15.0-1046.50
4.15.0-1047.51
4.15.0-1049.54
4.15.0-1050.55
4.15.0-1051.56
4.15.0-1052.57
4.15.0-1055.60
4.15.0-1056.61
4.15.0-1057.62
4.15.0-1059.64
4.15.0-1060.65
4.15.0-1061.66
4.15.0-1063.68
4.15.0-1064.69
4.15.0-1066.71
4.15.0-1067.72
4.15.0-1069.74
4.15.0-1071.76
4.15.0-1075.80
4.15.0-1077.82
4.15.0-1082.92~16.04.1
4.15.0-1083.93~16.04.1
4.15.0-1089.99~16.04.1
4.15.0-1091.101~16.04.1
4.15.0-1092.102~16.04.1
4.15.0-1093.103~16.04.1
4.15.0-1095.105~16.04.1
4.15.0-1096.106~16.04.1
4.15.0-1098.109~16.04.1
4.15.0-1100.111~16.04.1
4.15.0-1102.113~16.04.1
4.15.0-1103.114~16.04.1
4.15.0-1106.118~16.04.1
4.15.0-1108.120~16.04.1
4.15.0-1109.121~16.04.1
4.15.0-1110.122~16.04.1
4.15.0-1111.123~16.04.1
4.15.0-1112.124~16.04.1
4.15.0-1113.126~16.04.1
4.15.0-1114.127~16.04.1
4.15.0-1115.128~16.04.1
4.15.0-1118.131~16.04.1
4.15.0-1121.134~16.04.1
4.15.0-1122.135~16.04.1
4.15.0-1123.136~16.04.1
4.15.0-1124.137~16.04.1
4.15.0-1125.138~16.04.1
4.15.0-1126.139~16.04.1
4.15.0-1127.140~16.04.1
4.15.0-1129.142~16.04.1
4.15.0-1130.143~16.04.1
4.15.0-1131.144~16.04.1
4.15.0-1133.146~16.04.1
4.15.0-1134.147~16.04.1
4.15.0-1136.149~16.04.1
4.15.0-1137.150~16.04.1
4.15.0-1138.151~16.04.1
4.15.0-1139.152~16.04.1
4.15.0-1142.156~16.04.1
4.15.0-1145.160~16.04.1
4.15.0-1146.161~16.04.1
4.15.0-1149.164~16.04.1
4.15.0-1150.165~16.04.1
4.15.0-1151.166~16.04.1
4.15.0-1153.168~16.04.1
4.15.0-1159.174~16.04.1
4.15.0-1162.177~16.04.1
4.15.0-1163.178~16.04.1
4.15.0-1164.179~16.04.1
4.15.0-1165.180~16.04.1
4.15.0-1166.181~16.04.1
4.15.0-1167.182~16.04.1
4.15.0-1168.183~16.04.1
4.15.0-1169.184~16.04.1
4.15.0-1170.185~16.04.1
4.15.0-1171.186~16.04.1
4.15.0-1172.187~16.04.1
4.15.0-1173.188~16.04.1
4.15.0-1174.189~16.04.1
4.15.0-1175.190~16.04.1
4.15.0-1176.191~16.04.1
4.15.0-1177.192~16.04.1
4.15.0-1178.193~16.04.1
4.15.0-1179.194~16.04.1
4.15.0-1180.195~16.04.1
4.15.0-1181.196~16.04.1
4.15.0-1182.197~16.04.1
4.15.0-1183.198~16.04.1
4.15.0-1184.199~16.04.1
4.15.0-1185.200~16.04.1
4.15.0-1186.201~16.04.1
4.15.0-1187.202~16.04.1
4.15.0-1188.203~16.04.1
4.15.0-1189.204~16.04.1
4.15.0-1190.205~16.04.1
4.15.0-1191.206~16.04.1
4.15.0-1192.207~16.04.1
4.15.0-1193.208~16.04.1
4.15.0-1194.209~16.04.1
4.15.0-1195.210~16.04.1
4.15.0-1196.211~16.04.1
4.15.0-1197.212~16.04.1
4.15.0-1200.215~16.04.1
4.15.0-1204.219~16.04.1
4.15.0-1205.220~16.04.1

Ecosystem specific 

{
    "availability":  "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
    "binaries":  [
        {
            "binary_name":  "linux-azure-cloud-tools-4.15.0-1206",
            "binary_version":  "4.15.0-1206.221~16.04.1"
        },
        {
            "binary_name":  "linux-azure-headers-4.15.0-1206",
            "binary_version":  "4.15.0-1206.221~16.04.1"
        },
        {
            "binary_name":  "linux-azure-tools-4.15.0-1206",
            "binary_version":  "4.15.0-1206.221~16.04.1"
        },
        {
            "binary_name":  "linux-buildinfo-4.15.0-1206-azure",
            "binary_version":  "4.15.0-1206.221~16.04.1"
        },
        {
            "binary_name":  "linux-cloud-tools-4.15.0-1206-azure",
            "binary_version":  "4.15.0-1206.221~16.04.1"
        },
        {
            "binary_name":  "linux-headers-4.15.0-1206-azure",
            "binary_version":  "4.15.0-1206.221~16.04.1"
        },
        {
            "binary_name":  "linux-image-unsigned-4.15.0-1206-azure",
            "binary_version":  "4.15.0-1206.221~16.04.1"
        },
        {
            "binary_name":  "linux-modules-4.15.0-1206-azure",
            "binary_version":  "4.15.0-1206.221~16.04.1"
        },
        {
            "binary_name":  "linux-modules-extra-4.15.0-1206-azure",
            "binary_version":  "4.15.0-1206.221~16.04.1"
        },
        {
            "binary_name":  "linux-tools-4.15.0-1206-azure",
            "binary_version":  "4.15.0-1206.221~16.04.1"
        }
    ]
}

Database specific

cves_map 
{
    "cves":  [
        {
            "id":  "CVE-2026-43071",
            "severity":  [
                {
                    "score":  "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "low",
                    "type":  "Ubuntu"
                }
            ]
        },
        {
            "id":  "CVE-2026-52914",
            "severity":  [
                {
                    "score":  "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                    "type":  "CVSS_V4"
                },
                {
                    "score":  "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "high",
                    "type":  "Ubuntu"
                }
            ]
        },
        {
            "id":  "CVE-2026-52993",
            "severity":  [
                {
                    "score":  "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                    "type":  "CVSS_V4"
                },
                {
                    "score":  "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "critical",
                    "type":  "Ubuntu"
                }
            ]
        },
        {
            "id":  "CVE-2026-53043",
            "severity":  [
                {
                    "score":  "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                    "type":  "CVSS_V4"
                },
                {
                    "score":  "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "high",
                    "type":  "Ubuntu"
                }
            ]
        },
        {
            "id":  "CVE-2026-53224",
            "severity":  [
                {
                    "score":  "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N",
                    "type":  "CVSS_V4"
                },
                {
                    "score":  "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "high",
                    "type":  "Ubuntu"
                }
            ]
        },
        {
            "id":  "CVE-2026-53246",
            "severity":  [
                {
                    "score":  "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N",
                    "type":  "CVSS_V4"
                },
                {
                    "score":  "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "medium",
                    "type":  "Ubuntu"
                }
            ]
        },
        {
            "id":  "CVE-2026-53309",
            "severity":  [
                {
                    "score":  "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
                    "type":  "CVSS_V4"
                },
                {
                    "score":  "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "medium",
                    "type":  "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem":  "Ubuntu:Pro:16.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8644-3.json"

Ubuntu:Pro:18.04:LTS / linux-azure-4.15

Package

Name
linux-azure-4.15
Purl
pkg:deb/ubuntu/linux-azure-4.15?arch=source&distro=esm-infra%2Fbionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
4.15.0-1206.221

Affected versions

4.*
4.15.0-1082.92
4.15.0-1083.93
4.15.0-1089.99
4.15.0-1091.101
4.15.0-1092.102
4.15.0-1093.103
4.15.0-1095.105
4.15.0-1096.106
4.15.0-1099.110
4.15.0-1100.111
4.15.0-1102.113
4.15.0-1103.114
4.15.0-1104.116
4.15.0-1106.118
4.15.0-1108.120
4.15.0-1109.121
4.15.0-1110.122
4.15.0-1111.123
4.15.0-1112.125
4.15.0-1113.126
4.15.0-1114.127
4.15.0-1115.128
4.15.0-1118.131
4.15.0-1121.134
4.15.0-1122.135
4.15.0-1123.136
4.15.0-1124.137
4.15.0-1125.138
4.15.0-1126.139
4.15.0-1127.140
4.15.0-1129.142
4.15.0-1130.143
4.15.0-1131.144
4.15.0-1133.146
4.15.0-1134.147
4.15.0-1136.149
4.15.0-1137.150
4.15.0-1138.151
4.15.0-1139.152
4.15.0-1142.156
4.15.0-1145.160
4.15.0-1146.161
4.15.0-1149.164
4.15.0-1150.165
4.15.0-1151.166
4.15.0-1153.168
4.15.0-1157.172
4.15.0-1158.173
4.15.0-1159.174
4.15.0-1161.176
4.15.0-1162.177
4.15.0-1163.178
4.15.0-1164.179
4.15.0-1165.180
4.15.0-1166.181
4.15.0-1167.182
4.15.0-1168.183
4.15.0-1169.184
4.15.0-1170.185
4.15.0-1171.186
4.15.0-1172.187
4.15.0-1173.188
4.15.0-1174.189
4.15.0-1175.190
4.15.0-1176.191
4.15.0-1177.192
4.15.0-1178.193
4.15.0-1179.194
4.15.0-1180.195
4.15.0-1181.196
4.15.0-1182.197
4.15.0-1183.198
4.15.0-1184.199
4.15.0-1185.200
4.15.0-1186.201
4.15.0-1187.202
4.15.0-1188.203
4.15.0-1189.204
4.15.0-1190.205
4.15.0-1191.206
4.15.0-1192.207
4.15.0-1193.208
4.15.0-1194.209
4.15.0-1195.210
4.15.0-1196.211
4.15.0-1197.212
4.15.0-1199.214
4.15.0-1200.215
4.15.0-1201.216
4.15.0-1202.217
4.15.0-1204.219
4.15.0-1205.220

Ecosystem specific 

{
    "availability":  "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries":  [
        {
            "binary_name":  "linux-azure-4.15-cloud-tools-4.15.0-1206",
            "binary_version":  "4.15.0-1206.221"
        },
        {
            "binary_name":  "linux-azure-4.15-headers-4.15.0-1206",
            "binary_version":  "4.15.0-1206.221"
        },
        {
            "binary_name":  "linux-azure-4.15-tools-4.15.0-1206",
            "binary_version":  "4.15.0-1206.221"
        },
        {
            "binary_name":  "linux-buildinfo-4.15.0-1206-azure",
            "binary_version":  "4.15.0-1206.221"
        },
        {
            "binary_name":  "linux-cloud-tools-4.15.0-1206-azure",
            "binary_version":  "4.15.0-1206.221"
        },
        {
            "binary_name":  "linux-headers-4.15.0-1206-azure",
            "binary_version":  "4.15.0-1206.221"
        },
        {
            "binary_name":  "linux-image-unsigned-4.15.0-1206-azure",
            "binary_version":  "4.15.0-1206.221"
        },
        {
            "binary_name":  "linux-modules-4.15.0-1206-azure",
            "binary_version":  "4.15.0-1206.221"
        },
        {
            "binary_name":  "linux-modules-extra-4.15.0-1206-azure",
            "binary_version":  "4.15.0-1206.221"
        },
        {
            "binary_name":  "linux-tools-4.15.0-1206-azure",
            "binary_version":  "4.15.0-1206.221"
        }
    ]
}

Database specific

cves_map 
{
    "cves":  [
        {
            "id":  "CVE-2026-43071",
            "severity":  [
                {
                    "score":  "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "low",
                    "type":  "Ubuntu"
                }
            ]
        },
        {
            "id":  "CVE-2026-52914",
            "severity":  [
                {
                    "score":  "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                    "type":  "CVSS_V4"
                },
                {
                    "score":  "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "high",
                    "type":  "Ubuntu"
                }
            ]
        },
        {
            "id":  "CVE-2026-52993",
            "severity":  [
                {
                    "score":  "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                    "type":  "CVSS_V4"
                },
                {
                    "score":  "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "critical",
                    "type":  "Ubuntu"
                }
            ]
        },
        {
            "id":  "CVE-2026-53043",
            "severity":  [
                {
                    "score":  "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                    "type":  "CVSS_V4"
                },
                {
                    "score":  "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "high",
                    "type":  "Ubuntu"
                }
            ]
        },
        {
            "id":  "CVE-2026-53224",
            "severity":  [
                {
                    "score":  "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N",
                    "type":  "CVSS_V4"
                },
                {
                    "score":  "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "high",
                    "type":  "Ubuntu"
                }
            ]
        },
        {
            "id":  "CVE-2026-53246",
            "severity":  [
                {
                    "score":  "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N",
                    "type":  "CVSS_V4"
                },
                {
                    "score":  "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "medium",
                    "type":  "Ubuntu"
                }
            ]
        },
        {
            "id":  "CVE-2026-53309",
            "severity":  [
                {
                    "score":  "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
                    "type":  "CVSS_V4"
                },
                {
                    "score":  "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "medium",
                    "type":  "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem":  "Ubuntu:Pro:18.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8644-3.json"

Ubuntu:Pro:FIPS-updates:18.04:LTS / linux-azure-fips

Package

Name
linux-azure-fips
Purl
pkg:deb/ubuntu/linux-azure-fips?arch=source&distro=fips-updates%2Fbionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
4.15.0-2114.120

Affected versions

4.*
4.15.0-1002.2
4.15.0-2006.7
4.15.0-2007.8
4.15.0-2008.9
4.15.0-2009.10
4.15.0-2012.14
4.15.0-2013.15
4.15.0-2015.17
4.15.0-2016.18
4.15.0-2017.20
4.15.0-2018.21
4.15.0-2020.23
4.15.0-2021.24
4.15.0-2022.25
4.15.0-2023.26
4.15.0-2024.27
4.15.0-2025.28
4.15.0-2026.29
4.15.0-2027.30
4.15.0-2030.33
4.15.0-2033.37
4.15.0-2034.38
4.15.0-2035.39
4.15.0-2036.40
4.15.0-2037.41
4.15.0-2038.42
4.15.0-2039.43
4.15.0-2041.45
4.15.0-2042.46
4.15.0-2043.47
4.15.0-2045.49
4.15.0-2046.50
4.15.0-2047.51
4.15.0-2048.52
4.15.0-2049.53
4.15.0-2050.54
4.15.0-2053.58
4.15.0-2056.62
4.15.0-2057.63
4.15.0-2059.65
4.15.0-2060.66
4.15.0-2062.68
4.15.0-2066.72
4.15.0-2067.73
4.15.0-2068.74
4.15.0-2070.76
4.15.0-2071.77
4.15.0-2072.78
4.15.0-2073.79
4.15.0-2074.80
4.15.0-2075.81
4.15.0-2076.82
4.15.0-2077.83
4.15.0-2078.84
4.15.0-2079.85
4.15.0-2080.86
4.15.0-2081.87
4.15.0-2082.88
4.15.0-2084.90
4.15.0-2085.91
4.15.0-2086.92
4.15.0-2087.93
4.15.0-2088.94
4.15.0-2089.95
4.15.0-2090.96
4.15.0-2091.97
4.15.0-2092.98
4.15.0-2093.99
4.15.0-2094.100
4.15.0-2095.101
4.15.0-2096.102
4.15.0-2097.103
4.15.0-2098.104
4.15.0-2099.105
4.15.0-2100.106
4.15.0-2101.107
4.15.0-2102.108
4.15.0-2104.110
4.15.0-2105.111
4.15.0-2106.112
4.15.0-2109.115
4.15.0-2110.116
4.15.0-2111.117
4.15.0-2112.118
4.15.0-2113.119

Ecosystem specific 

{
    "availability":  "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries":  [
        {
            "binary_name":  "linux-azure-fips-cloud-tools-4.15.0-2114",
            "binary_version":  "4.15.0-2114.120"
        },
        {
            "binary_name":  "linux-azure-fips-headers-4.15.0-2114",
            "binary_version":  "4.15.0-2114.120"
        },
        {
            "binary_name":  "linux-azure-fips-tools-4.15.0-2114",
            "binary_version":  "4.15.0-2114.120"
        },
        {
            "binary_name":  "linux-buildinfo-4.15.0-2114-azure-fips",
            "binary_version":  "4.15.0-2114.120"
        },
        {
            "binary_name":  "linux-cloud-tools-4.15.0-2114-azure-fips",
            "binary_version":  "4.15.0-2114.120"
        },
        {
            "binary_name":  "linux-headers-4.15.0-2114-azure-fips",
            "binary_version":  "4.15.0-2114.120"
        },
        {
            "binary_name":  "linux-image-unsigned-4.15.0-2114-azure-fips",
            "binary_version":  "4.15.0-2114.120"
        },
        {
            "binary_name":  "linux-image-unsigned-hmac-4.15.0-2114-azure-fips",
            "binary_version":  "4.15.0-2114.120"
        },
        {
            "binary_name":  "linux-modules-4.15.0-2114-azure-fips",
            "binary_version":  "4.15.0-2114.120"
        },
        {
            "binary_name":  "linux-modules-extra-4.15.0-2114-azure-fips",
            "binary_version":  "4.15.0-2114.120"
        },
        {
            "binary_name":  "linux-tools-4.15.0-2114-azure-fips",
            "binary_version":  "4.15.0-2114.120"
        }
    ]
}

Database specific

cves_map 
{
    "cves":  [
        {
            "id":  "CVE-2026-43071",
            "severity":  [
                {
                    "score":  "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "low",
                    "type":  "Ubuntu"
                }
            ]
        },
        {
            "id":  "CVE-2026-52914",
            "severity":  [
                {
                    "score":  "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                    "type":  "CVSS_V4"
                },
                {
                    "score":  "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "high",
                    "type":  "Ubuntu"
                }
            ]
        },
        {
            "id":  "CVE-2026-52993",
            "severity":  [
                {
                    "score":  "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
                    "type":  "CVSS_V4"
                },
                {
                    "score":  "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "critical",
                    "type":  "Ubuntu"
                }
            ]
        },
        {
            "id":  "CVE-2026-53043",
            "severity":  [
                {
                    "score":  "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                    "type":  "CVSS_V4"
                },
                {
                    "score":  "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "high",
                    "type":  "Ubuntu"
                }
            ]
        },
        {
            "id":  "CVE-2026-53224",
            "severity":  [
                {
                    "score":  "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N",
                    "type":  "CVSS_V4"
                },
                {
                    "score":  "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "high",
                    "type":  "Ubuntu"
                }
            ]
        },
        {
            "id":  "CVE-2026-53246",
            "severity":  [
                {
                    "score":  "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N",
                    "type":  "CVSS_V4"
                },
                {
                    "score":  "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "medium",
                    "type":  "Ubuntu"
                }
            ]
        },
        {
            "id":  "CVE-2026-53309",
            "severity":  [
                {
                    "score":  "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
                    "type":  "CVSS_V4"
                },
                {
                    "score":  "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type":  "CVSS_V3"
                },
                {
                    "score":  "medium",
                    "type":  "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem":  "Ubuntu:Pro:FIPS-updates:18.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8644-3.json"