USN-8426-1
- Source
- https://ubuntu.com/security/notices/USN-8426-1
- Import Source
- https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8426-1.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/USN-8426-1
- Upstream
- Related
- Published
- 2026-06-11T21:57:52Z
- Modified
- 2026-06-12T09:19:17.080575578Z
- Summary
- linux-azure-5.15, linux-azure-fips vulnerabilities
- Details
-
It was discovered that the Linux kernel algif_aead module did not properly handle in-place cryptographic operations. This flaw is known as Copy Fail. A local attacker could use this to escalate privileges, or possibly escape a container. (CVE-2026-31431)
It was discovered that the Linux kernel did not properly handle shared page fragments during socket buffer operations, collectively known as Dirty Frag. A logic flaw existed in the XFRM ESP-in-TCP subsystem and in the RxRPC networking subsystem when processing paged fragments. A local attacker could use this to escalate privileges, or possibly escape a container. (CVE-2026-43284, CVE-2026-43500)
It was discovered that a logic flaw existed in the XFRM ESP-in-TCP subsystem in the Linux kernel when handling socket buffer fragments. This flaw is known as Fragnesia. A local attacker could use this to escalate privileges, or possibly escape a container. (CVE-2026-43503, CVE-2026-46300)
Qualys discovered that a race condition existed in the ptrace subsystem of the Linux kernel when privileged processes are exiting. An unprivileged local attacker could use this issue to expose sensitive information. (CVE-2026-46333)
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; - Ethernet bonding driver; - SMB network file system; - Netfilter; - io_uring subsystem; - Packet sockets; - RDS protocol; - TLS protocol; (CVE-2024-35862, CVE-2024-50060, CVE-2026-23274, CVE-2026-23351, CVE-2026-31419, CVE-2026-31504, CVE-2026-31533, CVE-2026-43033, CVE-2026-43077, CVE-2026-43078, CVE-2026-43494, CVE-2026-46028)
- References
-
- https://ubuntu.com/security/notices/USN-8426-1
- https://ubuntu.com/security/CVE-2024-35862
- https://ubuntu.com/security/CVE-2024-50060
- https://ubuntu.com/security/CVE-2026-23274
- https://ubuntu.com/security/CVE-2026-23351
- https://ubuntu.com/security/CVE-2026-31419
- https://ubuntu.com/security/CVE-2026-31431
- https://ubuntu.com/security/CVE-2026-31504
- https://ubuntu.com/security/CVE-2026-31533
- https://ubuntu.com/security/CVE-2026-43033
- https://ubuntu.com/security/CVE-2026-43077
- https://ubuntu.com/security/CVE-2026-43078
- https://ubuntu.com/security/CVE-2026-43284
- https://ubuntu.com/security/CVE-2026-43494
- https://ubuntu.com/security/CVE-2026-43500
- https://ubuntu.com/security/CVE-2026-43503
- https://ubuntu.com/security/CVE-2026-46028
- https://ubuntu.com/security/CVE-2026-46300
- https://ubuntu.com/security/CVE-2026-46333
Affected packages
Ubuntu:Pro:20.04:LTS / linux-azure-5.15
Package
- Name
- linux-azure-5.15
- Purl
- pkg:deb/ubuntu/linux-azure-5.15?arch=source&distro=esm-infra%2Ffocal
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed5.15.0-1114.123~20.04.1
Affected versions
5.*
5.15.0-1007.8~20.04.1
5.15.0-1008.9~20.04.1
5.15.0-1013.16~20.04.1
5.15.0-1014.17~20.04.1
5.15.0-1017.20~20.04.1
5.15.0-1019.24~20.04.1
5.15.0-1020.25~20.04.1
5.15.0-1021.26~20.04.1
5.15.0-1022.27~20.04.1
5.15.0-1023.29~20.04.1
5.15.0-1029.36~20.04.1
5.15.0-1030.37~20.04.1
5.15.0-1031.38~20.04.1
5.15.0-1033.40~20.04.1
5.15.0-1034.41~20.04.1
5.15.0-1035.42~20.04.1
5.15.0-1036.43~20.04.1
5.15.0-1037.44~20.04.1
5.15.0-1038.45~20.04.1
5.15.0-1039.46~20.04.1
5.15.0-1040.47~20.04.1
5.15.0-1041.48~20.04.1
5.15.0-1042.49~20.04.1
5.15.0-1043.50~20.04.1
5.15.0-1045.52~20.04.1
5.15.0-1046.53~20.04.1
5.15.0-1047.54~20.04.1
5.15.0-1049.56~20.04.1
5.15.0-1050.57~20.04.1
5.15.0-1051.59~20.04.1
5.15.0-1052.60~20.04.1
5.15.0-1053.61~20.04.1
5.15.0-1054.62~20.04.1
5.15.0-1056.64~20.04.1
5.15.0-1057.65~20.04.1
5.15.0-1058.66~20.04.2
5.15.0-1059.67~20.04.1
5.15.0-1060.69~20.04.1
5.15.0-1061.70~20.04.1
5.15.0-1063.72~20.04.1
5.15.0-1064.73~20.04.1
5.15.0-1065.74~20.04.1
5.15.0-1067.76~20.04.1
5.15.0-1068.77~20.04.1
5.15.0-1070.79~20.04.1
5.15.0-1071.80~20.04.1
5.15.0-1072.81~20.04.1
5.15.0-1073.82~20.04.1
5.15.0-1074.83~20.04.1
5.15.0-1075.84~20.04.1
5.15.0-1078.87~20.04.1
5.15.0-1079.88~20.04.1
5.15.0-1081.90~20.04.1
5.15.0-1082.91~20.04.1
5.15.0-1086.95~20.04.1
5.15.0-1087.96~20.04.1
5.15.0-1088.97~20.04.1
5.15.0-1089.98~20.04.1
5.15.0-1091.100~20.04.1
5.15.0-1094.103~20.04.1
5.15.0-1095.104~20.04.1
5.15.0-1096.105~20.04.1
5.15.0-1097.106~20.04.1
5.15.0-1098.107~20.04.1
5.15.0-1102.111~20.04.1
5.15.0-1103.112~20.04.1
5.15.0-1110.119~20.04.1
5.15.0-1111.120~20.04.1
Ecosystem specific
{
"binaries": [
{
"binary_name": "linux-azure-5.15-cloud-tools-5.15.0-1114",
"binary_version": "5.15.0-1114.123~20.04.1"
},
{
"binary_name": "linux-azure-5.15-headers-5.15.0-1114",
"binary_version": "5.15.0-1114.123~20.04.1"
},
{
"binary_name": "linux-azure-5.15-tools-5.15.0-1114",
"binary_version": "5.15.0-1114.123~20.04.1"
},
{
"binary_name": "linux-buildinfo-5.15.0-1114-azure",
"binary_version": "5.15.0-1114.123~20.04.1"
},
{
"binary_name": "linux-cloud-tools-5.15.0-1114-azure",
"binary_version": "5.15.0-1114.123~20.04.1"
},
{
"binary_name": "linux-headers-5.15.0-1114-azure",
"binary_version": "5.15.0-1114.123~20.04.1"
},
{
"binary_name": "linux-image-unsigned-5.15.0-1114-azure",
"binary_version": "5.15.0-1114.123~20.04.1"
},
{
"binary_name": "linux-modules-5.15.0-1114-azure",
"binary_version": "5.15.0-1114.123~20.04.1"
},
{
"binary_name": "linux-modules-extra-5.15.0-1114-azure",
"binary_version": "5.15.0-1114.123~20.04.1"
},
{
"binary_name": "linux-modules-involflt-5.15.0-1114-azure",
"binary_version": "5.15.0-1114.123~20.04.1"
},
{
"binary_name": "linux-tools-5.15.0-1114-azure",
"binary_version": "5.15.0-1114.123~20.04.1"
}
],
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}
Database specific
cves_map
{
"ecosystem": "Ubuntu:Pro:20.04:LTS",
"cves": [
{
"id": "CVE-2024-35862",
"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-2024-50060",
"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-2026-23274",
"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-2026-23351",
"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-2026-31419",
"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-2026-31431",
"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-2026-31504",
"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-2026-31533",
"severity": [
{
"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-2026-43033",
"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-2026-43077",
"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-2026-43078",
"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-2026-43284",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "high",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-43494",
"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-2026-43500",
"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": "high",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-43503",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-46028",
"severity": [
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-46300",
"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": "high",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-46333",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "high",
"type": "Ubuntu"
}
]
}
]
}
source
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8426-1.json"
Ubuntu:Pro:FIPS-updates:22.04:LTS / linux-azure-fips
Package
- Name
- linux-azure-fips
- Purl
- pkg:deb/ubuntu/linux-azure-fips?arch=source&distro=fips-updates%2Fjammy
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed5.15.0-1114.123+fips1
Affected versions
5.*
5.15.0-1053.61+fips1
5.15.0-1058.66+fips1
5.15.0-1059.67+fips1
5.15.0-1060.69+fips1
5.15.0-1061.70+fips1
5.15.0-1063.72+fips1
5.15.0-1064.73+fips1
5.15.0-1065.74+fips1
5.15.0-1067.76+fips1
5.15.0-1068.77+fips1
5.15.0-1070.79+fips1
5.15.0-1071.80+fips1
5.15.0-1072.81+fips1
5.15.0-1073.82+fips1
5.15.0-1074.83+fips1
5.15.0-1075.84+fips1
5.15.0-1078.87+fips1
5.15.0-1079.88+fips1
5.15.0-1080.89+fips1
5.15.0-1082.91+fips1
5.15.0-1083.92+fips1
5.15.0-1085.94+fips1
5.15.0-1087.96+fips1
5.15.0-1088.97+fips1
5.15.0-1089.98+fips1
5.15.0-1090.99+fips1
5.15.0-1091.100+fips1
5.15.0-1094.103+fips1
5.15.0-1095.104+fips1
5.15.0-1096.105+fips1
5.15.0-1097.106+fips1
5.15.0-1098.107+fips1
5.15.0-1101.110+fips1
5.15.0-1102.111+fips1
5.15.0-1103.112+fips1
5.15.0-1109.118+fips1
5.15.0-1110.119+fips1
5.15.0-1111.120+fips1
Ecosystem specific
{
"binaries": [
{
"binary_name": "linux-azure-fips-cloud-tools-5.15.0-1114",
"binary_version": "5.15.0-1114.123+fips1"
},
{
"binary_name": "linux-azure-fips-headers-5.15.0-1114",
"binary_version": "5.15.0-1114.123+fips1"
},
{
"binary_name": "linux-azure-fips-tools-5.15.0-1114",
"binary_version": "5.15.0-1114.123+fips1"
},
{
"binary_name": "linux-buildinfo-5.15.0-1114-azure-fips",
"binary_version": "5.15.0-1114.123+fips1"
},
{
"binary_name": "linux-cloud-tools-5.15.0-1114-azure-fips",
"binary_version": "5.15.0-1114.123+fips1"
},
{
"binary_name": "linux-headers-5.15.0-1114-azure-fips",
"binary_version": "5.15.0-1114.123+fips1"
},
{
"binary_name": "linux-image-unsigned-5.15.0-1114-azure-fips",
"binary_version": "5.15.0-1114.123+fips1"
},
{
"binary_name": "linux-image-unsigned-hmac-5.15.0-1114-azure-fips",
"binary_version": "5.15.0-1114.123+fips1"
},
{
"binary_name": "linux-modules-5.15.0-1114-azure-fips",
"binary_version": "5.15.0-1114.123+fips1"
},
{
"binary_name": "linux-modules-extra-5.15.0-1114-azure-fips",
"binary_version": "5.15.0-1114.123+fips1"
},
{
"binary_name": "linux-modules-involflt-5.15.0-1114-azure-fips",
"binary_version": "5.15.0-1114.123+fips1"
},
{
"binary_name": "linux-tools-5.15.0-1114-azure-fips",
"binary_version": "5.15.0-1114.123+fips1"
}
],
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}
Database specific
cves_map
{
"ecosystem": "Ubuntu:Pro:FIPS-updates:22.04:LTS",
"cves": [
{
"id": "CVE-2024-35862",
"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-2024-50060",
"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-2026-23274",
"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-2026-23351",
"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-2026-31419",
"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-2026-31431",
"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-2026-31504",
"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-2026-31533",
"severity": [
{
"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-2026-43033",
"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-2026-43077",
"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-2026-43078",
"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-2026-43284",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "high",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-43494",
"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-2026-43500",
"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": "high",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-43503",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-46028",
"severity": [
{
"score": "medium",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-46300",
"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": "high",
"type": "Ubuntu"
}
]
},
{
"id": "CVE-2026-46333",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "high",
"type": "Ubuntu"
}
]
}
]
}
source
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8426-1.json"