USN-8631-4
- Source
- https://ubuntu.com/security/notices/USN-8631-4
- Import Source
- https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8631-4.json
- JSON Data
- https://api.osv.dev/v1/vulns/USN-8631-4
- Upstream
- Related
- Published
- 2026-08-17T16:46:13Z
- Modified
- 2026-08-17T23:59:13.051863160Z
- Summary
- linux-azure-fde-5.15 vulnerabilities
- Details
-
Siebe Devroe, Héloïse Gollier, and Mathy Vanhoef discovered that the WiFi implementation in the Linux kernel did not properly handle aggregated frames in mesh networks, due to an incorrect fix for CVE-2020-24588. A physically proximate attacker could use this issue to inject packets. (CVE-2025-27558)
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: - x86 architecture; - InfiniBand drivers; - Network drivers; - NVME drivers; - Ext4 file system; - SMB network file system; - IPv4 networking; - Network traffic control; - TCP network protocol; - Locking primitives; - IPv6 networking; - Multipath TCP; - Netfilter; - SCTP protocol; - SMC sockets; (CVE-2026-31414, CVE-2026-31448, CVE-2026-31705, CVE-2026-43198, CVE-2026-43378, CVE-2026-43499, CVE-2026-46266, CVE-2026-46331, CVE-2026-52924, CVE-2026-52989, CVE-2026-53086, CVE-2026-53176, CVE-2026-53212, CVE-2026-53215, CVE-2026-53225, CVE-2026-53228, CVE-2026-53359)
- References
-
- https://ubuntu.com/security/notices/USN-8631-4
- https://ubuntu.com/security/CVE-2025-27558
- https://ubuntu.com/security/CVE-2026-31414
- https://ubuntu.com/security/CVE-2026-31448
- https://ubuntu.com/security/CVE-2026-31705
- https://ubuntu.com/security/CVE-2026-43198
- https://ubuntu.com/security/CVE-2026-43378
- https://ubuntu.com/security/CVE-2026-43499
- https://ubuntu.com/security/CVE-2026-46266
- https://ubuntu.com/security/CVE-2026-46331
- https://ubuntu.com/security/CVE-2026-52924
- https://ubuntu.com/security/CVE-2026-52989
- https://ubuntu.com/security/CVE-2026-53086
- https://ubuntu.com/security/CVE-2026-53176
- https://ubuntu.com/security/CVE-2026-53212
- https://ubuntu.com/security/CVE-2026-53215
- https://ubuntu.com/security/CVE-2026-53225
- https://ubuntu.com/security/CVE-2026-53228
- https://ubuntu.com/security/CVE-2026-53359
Affected packages
Ubuntu:Pro:20.04:LTS / linux-azure-fde-5.15
Package
- Name
- linux-azure-fde-5.15
- Purl
- pkg:deb/ubuntu/linux-azure-fde-5.15?arch=source&distro=esm-infra%2Ffocal
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed5.15.0-1118.127~20.04.1
Affected versions
5.*
5.15.0-1019.24~20.04.1.1
5.15.0-1020.25~20.04.1.1
5.15.0-1021.26~20.04.1.1
5.15.0-1029.36~20.04.1.1
5.15.0-1030.37~20.04.1.1
5.15.0-1031.38~20.04.1.1
5.15.0-1033.40~20.04.1.1
5.15.0-1034.41~20.04.1.2
5.15.0-1035.42~20.04.1.1
5.15.0-1036.43~20.04.1.1
5.15.0-1037.44~20.04.1.1
5.15.0-1038.45~20.04.1.1
5.15.0-1039.46~20.04.1.1
5.15.0-1040.47~20.04.1.1
5.15.0-1041.48~20.04.1.1
5.15.0-1042.49~20.04.1.1
5.15.0-1043.50~20.04.1.1
5.15.0-1046.53~20.04.1.1
5.15.0-1047.54~20.04.1.1
5.15.0-1049.56~20.04.1.1
5.15.0-1050.57~20.04.1.1
5.15.0-1051.59~20.04.1.1
5.15.0-1052.60~20.04.1.1
5.15.0-1053.61~20.04.1.1
5.15.0-1054.62~20.04.1.1
5.15.0-1056.64~20.04.1.1
5.15.0-1057.65~20.04.1.1
5.15.0-1058.66~20.04.2.1
5.15.0-1059.67~20.04.1.1
5.15.0-1060.69~20.04.1.1
5.15.0-1061.70~20.04.1.1
5.15.0-1063.72~20.04.1.1
5.15.0-1064.73~20.04.1.1
5.15.0-1065.74~20.04.1.1
5.15.0-1067.76~20.04.1.1
5.15.0-1068.77~20.04.1.1
5.15.0-1070.79~20.04.1.1
5.15.0-1071.80~20.04.1.1
5.15.0-1072.81~20.04.1.1
5.15.0-1073.82~20.04.1.1
5.15.0-1074.83~20.04.1.1
5.15.0-1076.85~20.04.1.1
5.15.0-1078.87~20.04.1.1
5.15.0-1081.90~20.04.1.1
5.15.0-1082.91~20.04.1.1
5.15.0-1086.95~20.04.1.1
5.15.0-1087.96~20.04.1.1
5.15.0-1088.97~20.04.1.1
5.15.0-1089.98~20.04.1.1
5.15.0-1091.100~20.04.1.1
5.15.0-1094.103~20.04.1.1
5.15.0-1096.105~20.04.1.1
5.15.0-1097.106~20.04.1.1
5.15.0-1098.107~20.04.1.1
5.15.0-1102.111~20.04.1.1
5.15.0-1103.112~20.04.1.1
5.15.0-1111.120~20.04.1.1
5.15.0-1114.123~20.04.1
5.15.0-1116.125~20.04.1
5.15.0-1117.126~20.04.2
Ecosystem specific
{
"binaries": [
{
"binary_name": "linux-azure-fde-5.15-cloud-tools-5.15.0-1118",
"binary_version": "5.15.0-1118.127~20.04.1"
},
{
"binary_name": "linux-azure-fde-5.15-headers-5.15.0-1118",
"binary_version": "5.15.0-1118.127~20.04.1"
},
{
"binary_name": "linux-azure-fde-5.15-tools-5.15.0-1118",
"binary_version": "5.15.0-1118.127~20.04.1"
},
{
"binary_name": "linux-buildinfo-5.15.0-1118-azure-fde",
"binary_version": "5.15.0-1118.127~20.04.1"
},
{
"binary_name": "linux-cloud-tools-5.15.0-1118-azure-fde",
"binary_version": "5.15.0-1118.127~20.04.1"
},
{
"binary_name": "linux-headers-5.15.0-1118-azure-fde",
"binary_version": "5.15.0-1118.127~20.04.1"
},
{
"binary_name": "linux-image-unsigned-5.15.0-1118-azure-fde",
"binary_version": "5.15.0-1118.127~20.04.1"
},
{
"binary_name": "linux-modules-5.15.0-1118-azure-fde",
"binary_version": "5.15.0-1118.127~20.04.1"
},
{
"binary_name": "linux-modules-extra-5.15.0-1118-azure-fde",
"binary_version": "5.15.0-1118.127~20.04.1"
},
{
"binary_name": "linux-modules-involflt-5.15.0-1118-azure-fde",
"binary_version": "5.15.0-1118.127~20.04.1"
},
{
"binary_name": "linux-tools-5.15.0-1118-azure-fde",
"binary_version": "5.15.0-1118.127~20.04.1"
}
],
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}
Database specific
source
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8631-4.json"
cves_map
{
"cves": [
{
"severity": [
{
"score": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/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:N",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"id": "CVE-2025-27558"
},
{
"severity": [
{
"score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "high"
}
],
"id": "CVE-2026-31414"
},
{
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "low"
}
],
"id": "CVE-2026-31448"
},
{
"severity": [
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"score": "high",
"type": "Ubuntu"
}
],
"id": "CVE-2026-31705"
},
{
"severity": [
{
"type": "CVSS_V4",
"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_V3",
"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"
},
{
"score": "high",
"type": "Ubuntu"
}
],
"id": "CVE-2026-43198"
},
{
"severity": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
},
{
"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": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "high"
}
],
"id": "CVE-2026-43378"
},
{
"severity": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "high"
}
],
"id": "CVE-2026-43499"
},
{
"severity": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"id": "CVE-2026-46266"
},
{
"severity": [
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:H/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": "Ubuntu",
"score": "high"
}
],
"id": "CVE-2026-46331"
},
{
"severity": [
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/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": "Ubuntu",
"score": "high"
}
],
"id": "CVE-2026-52924"
},
{
"severity": [
{
"type": "CVSS_V4",
"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_V3",
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"
},
{
"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-2026-52989"
},
{
"severity": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"score": "high",
"type": "Ubuntu"
}
],
"id": "CVE-2026-53086"
},
{
"severity": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
},
{
"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-2026-53176"
},
{
"severity": [
{
"score": "CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
},
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"type": "Ubuntu",
"score": "high"
}
],
"id": "CVE-2026-53212"
},
{
"severity": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
},
{
"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-2026-53215"
},
{
"severity": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"
},
{
"score": "negligible",
"type": "Ubuntu"
}
],
"id": "CVE-2026-53225"
},
{
"severity": [
{
"score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"id": "CVE-2026-53228"
},
{
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
},
{
"score": "high",
"type": "Ubuntu"
}
],
"id": "CVE-2026-53359"
}
],
"ecosystem": "Ubuntu:Pro:20.04:LTS"
}