USN-5073-2
- Source
- https://ubuntu.com/security/notices/USN-5073-2
- Import Source
- https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5073-2.json
- JSON Data
- https://api.osv.dev/v1/vulns/USN-5073-2
- Upstream
- Related
- Published
- 2021-09-17T06:27:26.141097Z
- Modified
- 2025-10-13T04:35:37Z
- Summary
- linux-gcp, linux-gcp-4.15 vulnerabilities
- Details
-
Maxim Levitsky and Paolo Bonzini discovered that the KVM hypervisor implementation for AMD processors in the Linux kernel allowed a guest VM to disable restrictions on VMLOAD/VMSAVE in a nested guest. An attacker in a guest VM could use this to read or write portions of the host's physical memory. (CVE-2021-3656)
Maxim Levitsky discovered that the KVM hypervisor implementation for AMD processors in the Linux kernel did not properly prevent a guest VM from enabling AVIC in nested guest VMs. An attacker in a guest VM could use this to write to portions of the host's physical memory. (CVE-2021-3653)
Norbert Slusarek discovered that the CAN broadcast manger (bcm) protocol implementation in the Linux kernel did not properly initialize memory in some situations. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2021-34693)
Murray McAllister discovered that the joystick device interface in the Linux kernel did not properly validate data passed via an ioctl(). A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code on systems with a joystick device registered. (CVE-2021-3612)
It was discovered that the Virtio console implementation in the Linux kernel did not properly validate input lengths in some situations. A local attacker could possibly use this to cause a denial of service (system crash). (CVE-2021-38160)
- References
Affected packages
Ubuntu:Pro:16.04:LTS / linux-gcp
Package
- Name
- linux-gcp
- Purl
- pkg:deb/ubuntu/linux-gcp@4.15.0-1108.122~16.04.1?arch=source&distro=esm-infra/xenial
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed4.15.0-1108.122~16.04.1
Affected versions
4.*
4.10.0-1004.4
4.10.0-1006.6
4.10.0-1007.7
4.10.0-1008.8
4.10.0-1009.9
4.13.0-1002.5
4.13.0-1006.9
4.13.0-1007.10
4.13.0-1008.11
4.13.0-1011.15
4.13.0-1012.16
4.13.0-1013.17
4.13.0-1015.19
4.13.0-1017.21
4.13.0-1019.23
4.15.0-1014.14~16.04.1
4.15.0-1015.15~16.04.1
4.15.0-1017.18~16.04.1
4.15.0-1018.19~16.04.2
4.15.0-1019.20~16.04.1
4.15.0-1021.22~16.04.1
4.15.0-1023.24~16.04.1
4.15.0-1024.25~16.04.2
4.15.0-1025.26~16.04.1
4.15.0-1026.27~16.04.1
4.15.0-1027.28~16.04.1
4.15.0-1028.29~16.04.1
4.15.0-1029.31~16.04.1
4.15.0-1030.32~16.04.1
4.15.0-1032.34~16.04.1
4.15.0-1033.35~16.04.1
4.15.0-1034.36~16.04.1
4.15.0-1036.38~16.04.1
4.15.0-1037.39~16.04.1
4.15.0-1040.42~16.04.1
4.15.0-1041.43
4.15.0-1042.44
4.15.0-1044.46
4.15.0-1046.49
4.15.0-1047.50
4.15.0-1049.52
4.15.0-1050.53
4.15.0-1052.56
4.15.0-1055.59
4.15.0-1058.62
4.15.0-1060.64
4.15.0-1061.65
4.15.0-1071.81~16.04.1
4.15.0-1077.87~16.04.1
4.15.0-1078.88~16.04.1
4.15.0-1080.90~16.04.1
4.15.0-1081.92~16.04.1
4.15.0-1083.94~16.04.1
4.15.0-1084.95~16.04.1
4.15.0-1086.98~16.04.1
4.15.0-1087.100~16.04.1
4.15.0-1088.101~16.04.1
4.15.0-1090.103~16.04.1
4.15.0-1091.104~16.04.1
4.15.0-1092.105~16.04.1
4.15.0-1093.106~16.04.1
4.15.0-1094.107~16.04.1
4.15.0-1095.108~16.04.1
4.15.0-1096.109~16.04.1
4.15.0-1097.110~16.04.1
4.15.0-1098.111~16.04.1
4.15.0-1099.112~16.04.1
4.15.0-1100.113~16.04.1
4.15.0-1103.116~16.04.1
4.15.0-1106.120~16.04.1
4.15.0-1107.121~16.04.1
Ecosystem specific
{
"binaries": [
{
"binary_version": "4.15.0-1108.122~16.04.1",
"binary_name": "linux-buildinfo-4.15.0-1108-gcp"
},
{
"binary_version": "4.15.0-1108.122~16.04.1",
"binary_name": "linux-gcp-headers-4.15.0-1108"
},
{
"binary_version": "4.15.0-1108.122~16.04.1",
"binary_name": "linux-gcp-tools-4.15.0-1108"
},
{
"binary_version": "4.15.0-1108.122~16.04.1",
"binary_name": "linux-headers-4.15.0-1108-gcp"
},
{
"binary_version": "4.15.0-1108.122~16.04.1",
"binary_name": "linux-image-unsigned-4.15.0-1108-gcp"
},
{
"binary_version": "4.15.0-1108.122~16.04.1",
"binary_name": "linux-modules-4.15.0-1108-gcp"
},
{
"binary_version": "4.15.0-1108.122~16.04.1",
"binary_name": "linux-modules-extra-4.15.0-1108-gcp"
},
{
"binary_version": "4.15.0-1108.122~16.04.1",
"binary_name": "linux-tools-4.15.0-1108-gcp"
}
],
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}
Database specific
cves_map
{
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"cves": [
{
"id": "CVE-2021-3612",
"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-2021-3653",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "high"
}
]
},
{
"id": "CVE-2021-3656",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "high"
}
]
},
{
"id": "CVE-2021-34693",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
},
{
"type": "Ubuntu",
"score": "low"
}
]
},
{
"id": "CVE-2021-38160",
"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"
}
]
}
]
}
Ubuntu:18.04:LTS / linux-gcp-4.15
Package
- Name
- linux-gcp-4.15
- Purl
- pkg:deb/ubuntu/linux-gcp-4.15@4.15.0-1108.122?arch=source&distro=bionic
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed4.15.0-1108.122
Affected versions
4.*
4.15.0-1071.81
4.15.0-1077.87
4.15.0-1078.88
4.15.0-1080.90
4.15.0-1081.92
4.15.0-1083.94
4.15.0-1084.95
4.15.0-1086.98
4.15.0-1087.100
4.15.0-1088.101
4.15.0-1090.103
4.15.0-1091.104
4.15.0-1092.105
4.15.0-1093.106
4.15.0-1094.107
4.15.0-1095.108
4.15.0-1096.109
4.15.0-1097.110
4.15.0-1098.111
4.15.0-1099.112
4.15.0-1100.113
4.15.0-1103.116
4.15.0-1106.120
4.15.0-1107.121
Ecosystem specific
{
"binaries": [
{
"binary_version": "4.15.0-1108.122",
"binary_name": "linux-buildinfo-4.15.0-1108-gcp"
},
{
"binary_version": "4.15.0-1108.122",
"binary_name": "linux-gcp-4.15-headers-4.15.0-1108"
},
{
"binary_version": "4.15.0-1108.122",
"binary_name": "linux-gcp-4.15-tools-4.15.0-1108"
},
{
"binary_version": "4.15.0-1108.122",
"binary_name": "linux-headers-4.15.0-1108-gcp"
},
{
"binary_version": "4.15.0-1108.122",
"binary_name": "linux-image-unsigned-4.15.0-1108-gcp"
},
{
"binary_version": "4.15.0-1108.122",
"binary_name": "linux-modules-4.15.0-1108-gcp"
},
{
"binary_version": "4.15.0-1108.122",
"binary_name": "linux-modules-extra-4.15.0-1108-gcp"
},
{
"binary_version": "4.15.0-1108.122",
"binary_name": "linux-tools-4.15.0-1108-gcp"
}
],
"availability": "No subscription required"
}
Database specific
cves_map
{
"ecosystem": "Ubuntu:18.04:LTS",
"cves": [
{
"id": "CVE-2021-3612",
"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-2021-3653",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "high"
}
]
},
{
"id": "CVE-2021-3656",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "high"
}
]
},
{
"id": "CVE-2021-34693",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"
},
{
"type": "Ubuntu",
"score": "low"
}
]
},
{
"id": "CVE-2021-38160",
"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"
}
]
}
]
}