USN-7939-2
- Source
- https://ubuntu.com/security/notices/USN-7939-2
- Import Source
- https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7939-2.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/USN-7939-2
- Upstream
- Related
- Published
- 2025-12-16T22:25:38.677925Z
- Modified
- 2025-12-18T23:44:50.699441Z
- Summary
- linux-azure-fips vulnerabilities
- Details
-
Jean-Claude Graf, Sandro Rüegge, Ali Hajiabadi, and Kaveh Razavi discovered that the Linux kernel contained insufficient branch predictor isolation between a guest and a userspace hypervisor for certain processors. This flaw is known as VMSCAPE. An attacker in a guest VM could possibly use this to expose sensitive information from the host OS. (CVE-2025-40300)
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: - Cryptographic API; - ACPI drivers; - HSI subsystem; - I3C subsystem; - InfiniBand drivers; - Media drivers; - Network drivers; - Pin controllers subsystem; - AFS file system; - F2FS file system; - SMB network file system; - Padata parallel execution mechanism; - Timer subsystem; - Tracing infrastructure; - Memory management; - Appletalk network protocol; - Networking core; - Netfilter; (CVE-2022-49026, CVE-2022-49390, CVE-2023-52854, CVE-2024-35867, CVE-2024-47691, CVE-2024-49935, CVE-2024-50061, CVE-2024-50067, CVE-2024-50095, CVE-2024-50196, CVE-2024-53090, CVE-2024-53218, CVE-2024-56664, CVE-2025-21727, CVE-2025-21855, CVE-2025-37838, CVE-2025-37958, CVE-2025-38352, CVE-2025-38666, CVE-2025-39964, CVE-2025-39993, CVE-2025-40018)
- References
-
- https://ubuntu.com/security/notices/USN-7939-2
- https://ubuntu.com/security/CVE-2022-49026
- https://ubuntu.com/security/CVE-2022-49390
- https://ubuntu.com/security/CVE-2023-52854
- https://ubuntu.com/security/CVE-2024-35867
- https://ubuntu.com/security/CVE-2024-47691
- https://ubuntu.com/security/CVE-2024-49935
- https://ubuntu.com/security/CVE-2024-50061
- https://ubuntu.com/security/CVE-2024-50067
- https://ubuntu.com/security/CVE-2024-50095
- https://ubuntu.com/security/CVE-2024-50196
- https://ubuntu.com/security/CVE-2024-53090
- https://ubuntu.com/security/CVE-2024-53218
- https://ubuntu.com/security/CVE-2024-56664
- https://ubuntu.com/security/CVE-2025-21727
- https://ubuntu.com/security/CVE-2025-21855
- https://ubuntu.com/security/CVE-2025-37838
- https://ubuntu.com/security/CVE-2025-37958
- https://ubuntu.com/security/CVE-2025-38352
- https://ubuntu.com/security/CVE-2025-38666
- https://ubuntu.com/security/CVE-2025-39964
- https://ubuntu.com/security/CVE-2025-39993
- https://ubuntu.com/security/CVE-2025-40018
- https://ubuntu.com/security/CVE-2025-40300
Affected packages
Ubuntu:Pro:FIPS-updates:20.04:LTS / linux-azure-fips
Package
- Name
- linux-azure-fips
- Purl
- pkg:deb/ubuntu/linux-azure-fips@5.4.0-1157.164+fips1?arch=source&distro=fips-updates/focal
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed5.4.0-1157.164+fips1
Affected versions
5.*
5.4.0-1022.22+fips1
5.4.0-1073.76+fips1
5.4.0-1074.77+fips1
5.4.0-1076.79+fips1
5.4.0-1078.81+fips1
5.4.0-1080.83+fips1
5.4.0-1083.87+fips1
5.4.0-1085.90+fips1
5.4.0-1086.91+fips1
5.4.0-1089.94+fips1
5.4.0-1090.95+fips1
5.4.0-1091.96+fips1
5.4.0-1094.100+fips1
5.4.0-1095.101+fips1
5.4.0-1098.104+fips1
5.4.0-1100.106+fips1
5.4.0-1101.107+fips1
5.4.0-1103.109+fips1
5.4.0-1104.110+fips1
5.4.0-1105.111+fips1
5.4.0-1106.112+fips1
5.4.0-1107.113+fips1
5.4.0-1108.114+fips1
5.4.0-1109.115+fips1
5.4.0-1110.116+fips1
5.4.0-1111.117+fips1
5.4.0-1112.118+fips1
5.4.0-1113.119+fips1
5.4.0-1114.120+fips1
5.4.0-1115.122+fips1
5.4.0-1116.123+fips1
5.4.0-1117.124+fips1
5.4.0-1118.125+fips1
5.4.0-1119.126+fips1
5.4.0-1121.128+fips1
5.4.0-1122.129+fips1
5.4.0-1123.130+fips1
5.4.0-1124.131+fips1
5.4.0-1126.133+fips1
5.4.0-1127.134+fips1
5.4.0-1128.135+fips1
5.4.0-1129.136+fips1
5.4.0-1130.137+fips1
5.4.0-1131.138+fips1
5.4.0-1132.139+fips1
5.4.0-1133.140+fips1
5.4.0-1134.141+fips1
5.4.0-1135.142+fips1
5.4.0-1136.143+fips1
5.4.0-1137.144+fips1
5.4.0-1138.145+fips1
5.4.0-1139.146+fips1
5.4.0-1140.147+fips1
5.4.0-1142.149+fips1
5.4.0-1143.150+fips1
5.4.0-1145.152+fips1
5.4.0-1147.154+fips1
5.4.0-1148.156+fips1
5.4.0-1149.157+fips1
5.4.0-1151.158+fips1
5.4.0-1152.159+fips1
5.4.0-1153.160+fips1
5.4.0-1154.161+fips1
5.4.0-1155.162+fips1
Ecosystem specific
{
"binaries": [
{
"binary_name": "linux-azure-fips-cloud-tools-5.4.0-1157",
"binary_version": "5.4.0-1157.164+fips1"
},
{
"binary_name": "linux-azure-fips-headers-5.4.0-1157",
"binary_version": "5.4.0-1157.164+fips1"
},
{
"binary_name": "linux-azure-fips-tools-5.4.0-1157",
"binary_version": "5.4.0-1157.164+fips1"
},
{
"binary_name": "linux-buildinfo-5.4.0-1157-azure-fips",
"binary_version": "5.4.0-1157.164+fips1"
},
{
"binary_name": "linux-cloud-tools-5.4.0-1157-azure-fips",
"binary_version": "5.4.0-1157.164+fips1"
},
{
"binary_name": "linux-headers-5.4.0-1157-azure-fips",
"binary_version": "5.4.0-1157.164+fips1"
},
{
"binary_name": "linux-image-unsigned-5.4.0-1157-azure-fips",
"binary_version": "5.4.0-1157.164+fips1"
},
{
"binary_name": "linux-image-unsigned-hmac-5.4.0-1157-azure-fips",
"binary_version": "5.4.0-1157.164+fips1"
},
{
"binary_name": "linux-modules-5.4.0-1157-azure-fips",
"binary_version": "5.4.0-1157.164+fips1"
},
{
"binary_name": "linux-modules-extra-5.4.0-1157-azure-fips",
"binary_version": "5.4.0-1157.164+fips1"
},
{
"binary_name": "linux-tools-5.4.0-1157-azure-fips",
"binary_version": "5.4.0-1157.164+fips1"
}
],
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}
Database specific
cves_map
{
"ecosystem": "Ubuntu:Pro:FIPS-updates:20.04:LTS",
"cves": [
{
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "high",
"type": "Ubuntu"
}
],
"id": "CVE-2022-49026"
},
{
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "high",
"type": "Ubuntu"
}
],
"id": "CVE-2022-49390"
},
{
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"id": "CVE-2023-52854"
},
{
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"id": "CVE-2024-35867"
},
{
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
],
"id": "CVE-2024-47691"
},
{
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"id": "CVE-2024-49935"
},
{
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"id": "CVE-2024-50061"
},
{
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"id": "CVE-2024-50067"
},
{
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"id": "CVE-2024-50095"
},
{
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"id": "CVE-2024-50196"
},
{
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"id": "CVE-2024-53090"
},
{
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "low",
"type": "Ubuntu"
}
],
"id": "CVE-2024-53218"
},
{
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"id": "CVE-2024-56664"
},
{
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "high",
"type": "Ubuntu"
}
],
"id": "CVE-2025-21727"
},
{
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"id": "CVE-2025-21855"
},
{
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"id": "CVE-2025-37838"
},
{
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"id": "CVE-2025-37958"
},
{
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "high",
"type": "Ubuntu"
}
],
"id": "CVE-2025-38352"
},
{
"severity": [
{
"score": "high",
"type": "Ubuntu"
}
],
"id": "CVE-2025-38666"
},
{
"severity": [
{
"score": "medium",
"type": "Ubuntu"
}
],
"id": "CVE-2025-39964"
},
{
"severity": [
{
"score": "medium",
"type": "Ubuntu"
}
],
"id": "CVE-2025-39993"
},
{
"severity": [
{
"score": "medium",
"type": "Ubuntu"
}
],
"id": "CVE-2025-40018"
},
{
"severity": [
{
"score": "high",
"type": "Ubuntu"
}
],
"id": "CVE-2025-40300"
}
]
}
source
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7939-2.json"