USN-7874-2
- Source
- https://ubuntu.com/security/notices/USN-7874-2
- Import Source
- https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-7874-2.json
- JSON Data
- https://api.osv.dev/v1/vulns/USN-7874-2
- Upstream
- Related
- Published
- 2025-11-19T17:27:37.056799Z
- Modified
- 2025-11-21T10:33:01.973159Z
- Summary
- linux-fips, linux-aws-fips, linux-gcp-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: - HSI subsystem; - I3C subsystem; - SMB network file system; - Padata parallel execution mechanism; - Timer subsystem; - Networking core; (CVE-2023-52854, CVE-2024-35867, CVE-2024-50061, CVE-2024-56664, CVE-2025-21727, CVE-2025-37838, CVE-2025-38352)
- References
-
- https://ubuntu.com/security/notices/USN-7874-2
- https://ubuntu.com/security/CVE-2023-52854
- https://ubuntu.com/security/CVE-2024-35867
- https://ubuntu.com/security/CVE-2024-50061
- https://ubuntu.com/security/CVE-2024-56664
- https://ubuntu.com/security/CVE-2025-21727
- https://ubuntu.com/security/CVE-2025-37838
- https://ubuntu.com/security/CVE-2025-38352
- https://ubuntu.com/security/CVE-2025-40300
Affected packages
Ubuntu:Pro:FIPS-updates:20.04:LTS / linux-aws-fips
Package
- Name
- linux-aws-fips
- Purl
- pkg:deb/ubuntu/linux-aws-fips@5.4.0-1152.162+fips1?arch=source&distro=fips-updates/focal
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed5.4.0-1152.162+fips1
Affected versions
5.*
5.4.0-1021.21+fips2
5.4.0-1069.73+fips2
5.4.0-1071.76+fips1
5.4.0-1072.77+fips1
5.4.0-1073.78+fips1
5.4.0-1078.84+fips1
5.4.0-1080.87+fips1
5.4.0-1081.88+fips1
5.4.0-1083.90+fips1
5.4.0-1085.92+fips1
5.4.0-1086.93+fips1
5.4.0-1088.96+fips1
5.4.0-1089.97+fips1
5.4.0-1092.100+fips1
5.4.0-1093.101+fips1
5.4.0-1094.102+fips1
5.4.0-1096.104+fips1
5.4.0-1099.107+fips1
5.4.0-1100.108+fips1
5.4.0-1101.109+fips1
5.4.0-1102.110+fips1
5.4.0-1103.111+fips1
5.4.0-1104.112+fips1
5.4.0-1105.113+fips1
5.4.0-1106.114+fips1
5.4.0-1107.115+fips1
5.4.0-1108.116+fips1
5.4.0-1109.118+fips1
5.4.0-1110.119+fips1
5.4.0-1111.120+fips1
5.4.0-1112.121+fips1
5.4.0-1113.123+fips1
5.4.0-1114.124+fips1
5.4.0-1116.126+fips1
5.4.0-1117.127+fips1
5.4.0-1118.128+fips1
5.4.0-1119.129+fips1
5.4.0-1120.130+fips1
5.4.0-1121.131+fips1
5.4.0-1122.132+fips1
5.4.0-1123.133+fips1
5.4.0-1124.134+fips1
5.4.0-1125.135+fips1
5.4.0-1126.136+fips2
5.4.0-1127.137+fips1
5.4.0-1128.138+fips1
5.4.0-1129.139+fips1
5.4.0-1130.140+fips1
5.4.0-1131.141+fips1
5.4.0-1132.142+fips1
5.4.0-1133.143+fips1
5.4.0-1134.144+fips1
5.4.0-1135.145+fips1
5.4.0-1136.146+fips1
5.4.0-1137.147+fips1
5.4.0-1139.149+fips1
5.4.0-1140.151+fips1
5.4.0-1142.153+fips1
5.4.0-1144.155+fips1
5.4.0-1145.156+fips1
5.4.0-1146.156+fips1
5.4.0-1147.157+fips1
5.4.0-1148.158+fips1
5.4.0-1149.159+fips1
5.4.0-1150.160+fips1
5.4.0-1151.161+fips1
Ecosystem specific
{
"binaries": [
{
"binary_version": "5.4.0-1152.162+fips1",
"binary_name": "linux-aws-fips-headers-5.4.0-1152"
},
{
"binary_version": "5.4.0-1152.162+fips1",
"binary_name": "linux-aws-fips-tools-5.4.0-1152"
},
{
"binary_version": "5.4.0-1152.162+fips1",
"binary_name": "linux-buildinfo-5.4.0-1152-aws-fips"
},
{
"binary_version": "5.4.0-1152.162+fips1",
"binary_name": "linux-headers-5.4.0-1152-aws-fips"
},
{
"binary_version": "5.4.0-1152.162+fips1",
"binary_name": "linux-image-unsigned-5.4.0-1152-aws-fips"
},
{
"binary_version": "5.4.0-1152.162+fips1",
"binary_name": "linux-image-unsigned-hmac-5.4.0-1152-aws-fips"
},
{
"binary_version": "5.4.0-1152.162+fips1",
"binary_name": "linux-modules-5.4.0-1152-aws-fips"
},
{
"binary_version": "5.4.0-1152.162+fips1",
"binary_name": "linux-modules-extra-5.4.0-1152-aws-fips"
},
{
"binary_version": "5.4.0-1152.162+fips1",
"binary_name": "linux-tools-5.4.0-1152-aws-fips"
}
],
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}
Database specific
cves_map
{
"cves": [
{
"id": "CVE-2023-52854",
"severity": [
{
"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": "medium"
}
]
},
{
"id": "CVE-2024-35867",
"severity": [
{
"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": "medium"
}
]
},
{
"id": "CVE-2024-50061",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2024-56664",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2025-21727",
"severity": [
{
"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-2025-37838",
"severity": [
{
"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": "medium"
}
]
},
{
"id": "CVE-2025-38352",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "high"
}
]
},
{
"id": "CVE-2025-40300",
"severity": [
{
"type": "Ubuntu",
"score": "high"
}
]
}
],
"ecosystem": "Ubuntu:Pro:FIPS-updates:20.04:LTS"
}
Ubuntu:Pro:FIPS-updates:20.04:LTS / linux-fips
Package
- Name
- linux-fips
- Purl
- pkg:deb/ubuntu/linux-fips@5.4.0-1126.136?arch=source&distro=fips-updates/focal
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed5.4.0-1126.136
Affected versions
5.*
5.4.0-1026.30
5.4.0-1028.32
5.4.0-1031.36
5.4.0-1032.37
5.4.0-1033.38
5.4.0-1034.40
5.4.0-1035.41
5.4.0-1036.42
5.4.0-1037.43
5.4.0-1038.44
5.4.0-1040.46
5.4.0-1041.47
5.4.0-1042.48
5.4.0-1043.49
5.4.0-1045.51
5.4.0-1046.52
5.4.0-1047.53
5.4.0-1048.54
5.4.0-1049.55
5.4.0-1051.57
5.4.0-1054.61
5.4.0-1056.64
5.4.0-1057.65
5.4.0-1059.67
5.4.0-1060.68
5.4.0-1061.69
5.4.0-1062.70
5.4.0-1064.73
5.4.0-1065.74
5.4.0-1068.77
5.4.0-1069.78
5.4.0-1070.79
5.4.0-1072.81
5.4.0-1073.82
5.4.0-1074.83
5.4.0-1075.84
5.4.0-1076.85
5.4.0-1077.86
5.4.0-1078.87
5.4.0-1079.88
5.4.0-1080.89
5.4.0-1081.90
5.4.0-1082.91
5.4.0-1083.92
5.4.0-1084.93
5.4.0-1085.94
5.4.0-1086.95
5.4.0-1087.96
5.4.0-1088.97
5.4.0-1089.98
5.4.0-1090.100
5.4.0-1091.101
5.4.0-1092.102
5.4.0-1094.104
5.4.0-1095.105
5.4.0-1096.106
5.4.0-1097.107
5.4.0-1098.108
5.4.0-1099.109
5.4.0-1100.110
5.4.0-1101.111
5.4.0-1102.112
5.4.0-1103.113
5.4.0-1104.114
5.4.0-1105.115
5.4.0-1106.116
5.4.0-1107.117
5.4.0-1108.118
5.4.0-1109.119
5.4.0-1110.120
5.4.0-1111.121
5.4.0-1112.122
5.4.0-1116.126
5.4.0-1117.127
5.4.0-1118.128
5.4.0-1119.129
5.4.0-1120.130
5.4.0-1121.131
5.4.0-1122.132
5.4.0-1123.133
5.4.0-1124.134
5.4.0-1125.135
Ecosystem specific
{
"binaries": [
{
"binary_version": "5.4.0-1126.136",
"binary_name": "linux-buildinfo-5.4.0-1126-fips"
},
{
"binary_version": "5.4.0-1126.136",
"binary_name": "linux-fips-headers-5.4.0-1126"
},
{
"binary_version": "5.4.0-1126.136",
"binary_name": "linux-fips-tools-5.4.0-1126"
},
{
"binary_version": "5.4.0-1126.136",
"binary_name": "linux-fips-tools-host"
},
{
"binary_version": "5.4.0-1126.136",
"binary_name": "linux-headers-5.4.0-1126-fips"
},
{
"binary_version": "5.4.0-1126.136",
"binary_name": "linux-image-unsigned-5.4.0-1126-fips"
},
{
"binary_version": "5.4.0-1126.136",
"binary_name": "linux-image-unsigned-hmac-5.4.0-1126-fips"
},
{
"binary_version": "5.4.0-1126.136",
"binary_name": "linux-modules-5.4.0-1126-fips"
},
{
"binary_version": "5.4.0-1126.136",
"binary_name": "linux-modules-extra-5.4.0-1126-fips"
},
{
"binary_version": "5.4.0-1126.136",
"binary_name": "linux-tools-5.4.0-1126-fips"
}
],
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}
Database specific
cves_map
{
"cves": [
{
"id": "CVE-2023-52854",
"severity": [
{
"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": "medium"
}
]
},
{
"id": "CVE-2024-35867",
"severity": [
{
"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": "medium"
}
]
},
{
"id": "CVE-2024-50061",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2024-56664",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2025-21727",
"severity": [
{
"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-2025-37838",
"severity": [
{
"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": "medium"
}
]
},
{
"id": "CVE-2025-38352",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "high"
}
]
},
{
"id": "CVE-2025-40300",
"severity": [
{
"type": "Ubuntu",
"score": "high"
}
]
}
],
"ecosystem": "Ubuntu:Pro:FIPS-updates:20.04:LTS"
}
Ubuntu:Pro:FIPS-updates:20.04:LTS / linux-gcp-fips
Package
- Name
- linux-gcp-fips
- Purl
- pkg:deb/ubuntu/linux-gcp-fips@5.4.0-1155.164+fips1?arch=source&distro=fips-updates/focal
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed5.4.0-1155.164+fips1
Affected versions
5.*
5.4.0-1021.21+fips1
5.4.0-1067.71~20.04.1
5.4.0-1069.73+fips2
5.4.0-1071.75+fips1
5.4.0-1073.78+fips1
5.4.0-1075.80+fips1
5.4.0-1078.84+fips1
5.4.0-1080.87+fips1
5.4.0-1081.88+fips1
5.4.0-1086.94+fips1
5.4.0-1087.95+fips1
5.4.0-1089.97+fips1
5.4.0-1092.101+fips1
5.4.0-1093.102+fips1
5.4.0-1096.105+fips1
5.4.0-1097.106+fips1
5.4.0-1098.107+fips1
5.4.0-1100.109+fips1
5.4.0-1101.110+fips1
5.4.0-1102.111+fips1
5.4.0-1103.112+fips1
5.4.0-1104.113+fips1
5.4.0-1105.114+fips1
5.4.0-1106.115+fips1
5.4.0-1107.116+fips1
5.4.0-1108.117+fips1
5.4.0-1109.118+fips1
5.4.0-1110.119+fips1
5.4.0-1111.120+fips1
5.4.0-1112.121+fips1
5.4.0-1113.122+fips1
5.4.0-1115.124+fips1
5.4.0-1116.125+fips1
5.4.0-1117.126+fips1
5.4.0-1118.127+fips1
5.4.0-1120.129+fips1
5.4.0-1121.130+fips1
5.4.0-1122.131+fips1
5.4.0-1124.133+fips1
5.4.0-1125.134+fips1
5.4.0-1126.135+fips1
5.4.0-1127.136+fips1
5.4.0-1128.137+fips1
5.4.0-1129.138+fips1
5.4.0-1130.139+fips1
5.4.0-1131.140+fips1
5.4.0-1132.141+fips1
5.4.0-1133.142+fips1
5.4.0-1134.143+fips1
5.4.0-1135.144+fips1
5.4.0-1136.145+fips1
5.4.0-1137.146+fips1
5.4.0-1138.147+fips1
5.4.0-1139.148+fips1
5.4.0-1140.149+fips1
5.4.0-1141.150+fips1
5.4.0-1142.151+fips1
5.4.0-1143.152+fips1
5.4.0-1145.154+fips1
5.4.0-1146.155+fips1
5.4.0-1147.156+fips1
5.4.0-1148.157+fips1
5.4.0-1149.158+fips1
5.4.0-1150.159+fips1
5.4.0-1151.160+fips1
5.4.0-1152.161+fips1
5.4.0-1153.162+fips1
5.4.0-1154.163+fips1
Ecosystem specific
{
"binaries": [
{
"binary_version": "5.4.0-1155.164+fips1",
"binary_name": "linux-buildinfo-5.4.0-1155-gcp-fips"
},
{
"binary_version": "5.4.0-1155.164+fips1",
"binary_name": "linux-gcp-fips-headers-5.4.0-1155"
},
{
"binary_version": "5.4.0-1155.164+fips1",
"binary_name": "linux-gcp-fips-tools-5.4.0-1155"
},
{
"binary_version": "5.4.0-1155.164+fips1",
"binary_name": "linux-headers-5.4.0-1155-gcp-fips"
},
{
"binary_version": "5.4.0-1155.164+fips1",
"binary_name": "linux-image-unsigned-5.4.0-1155-gcp-fips"
},
{
"binary_version": "5.4.0-1155.164+fips1",
"binary_name": "linux-image-unsigned-hmac-5.4.0-1155-gcp-fips"
},
{
"binary_version": "5.4.0-1155.164+fips1",
"binary_name": "linux-modules-5.4.0-1155-gcp-fips"
},
{
"binary_version": "5.4.0-1155.164+fips1",
"binary_name": "linux-modules-extra-5.4.0-1155-gcp-fips"
},
{
"binary_version": "5.4.0-1155.164+fips1",
"binary_name": "linux-tools-5.4.0-1155-gcp-fips"
}
],
"availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}
Database specific
cves_map
{
"cves": [
{
"id": "CVE-2023-52854",
"severity": [
{
"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": "medium"
}
]
},
{
"id": "CVE-2024-35867",
"severity": [
{
"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": "medium"
}
]
},
{
"id": "CVE-2024-50061",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2024-56664",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2025-21727",
"severity": [
{
"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-2025-37838",
"severity": [
{
"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": "medium"
}
]
},
{
"id": "CVE-2025-38352",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "high"
}
]
},
{
"id": "CVE-2025-40300",
"severity": [
{
"type": "Ubuntu",
"score": "high"
}
]
}
],
"ecosystem": "Ubuntu:Pro:FIPS-updates:20.04:LTS"
}