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vuln-ubuntu/data/osv/usn/USN-5292-3.json
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{
"schema_version": "1.7.0",
"id": "USN-5292-3",
"summary": "snapd vulnerabilities",
"details": "USN-5292-1 fixed several vulnerabilities in snapd. This update provides the\ncorresponding update for Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.\n\nOriginal advisory details:\n\n James Troup discovered that snap did not properly manage the permissions for\n the snap directories. A local attacker could possibly use this issue to expose\n sensitive information. (CVE-2021-3155)\n \n Ian Johnson discovered that snapd did not properly validate content interfaces\n and layout paths. A local attacker could possibly use this issue to inject\n arbitrary AppArmor policy rules, resulting in a bypass of intended access\n restrictions. (CVE-2021-4120)\n \n The Qualys Research Team discovered that snapd did not properly validate the\n location of the snap-confine binary. A local attacker could possibly use this\n issue to execute other arbitrary binaries and escalate privileges.\n (CVE-2021-44730)\n \n The Qualys Research Team discovered that a race condition existed in the snapd\n snap-confine binary when preparing a private mount namespace for a snap. A\n local attacker could possibly use this issue to escalate privileges and\n execute arbitrary code. (CVE-2021-44731)\n",
"aliases": [],
"upstream": [
"UBUNTU-CVE-2021-3155",
"UBUNTU-CVE-2021-4120",
"UBUNTU-CVE-2021-44730",
"UBUNTU-CVE-2021-44731"
],
"related": [],
"published": "2022-02-18T02:21:20Z",
"modified": "2026-06-29T10:52:53Z",
"affected": [
{
"package": {
"ecosystem": "Ubuntu:Pro:14.04:LTS",
"name": "snapd",
"purl": "pkg:deb/ubuntu/snapd@2.54.3+14.04~esm1?arch=source&distro=trusty/esm"
},
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.54.3+14.04~esm1"
}
]
}
],
"versions": [
"2.21~14.04.2",
"2.22.2~14.04",
"2.22.3~14.04",
"2.22.6~14.04",
"2.23.1~14.04",
"2.24.1~14.04",
"2.25~14.04",
"2.26.10~14.04",
"2.27.5~14.04",
"2.28.5~14.04",
"2.29.4.2~14.04",
"2.32.3.2~14.04",
"2.32.9~14.04",
"2.33.1~14.04",
"2.34.2~14.04",
"2.34.2~14.04.1",
"2.37.4~14.04.1",
"2.38~14.04"
],
"ecosystem_specific": {
"binaries": [
{
"binary_name": "golang-github-snapcore-snapd-dev",
"binary_version": "2.54.3+14.04~esm1"
},
{
"binary_name": "golang-github-ubuntu-core-snappy-dev",
"binary_version": "2.54.3+14.04~esm1"
},
{
"binary_name": "snap-confine",
"binary_version": "2.54.3+14.04~esm1"
},
{
"binary_name": "snapd",
"binary_version": "2.54.3+14.04~esm1"
},
{
"binary_name": "snapd-xdg-open",
"binary_version": "2.54.3+14.04~esm1"
},
{
"binary_name": "ubuntu-core-launcher",
"binary_version": "2.54.3+14.04~esm1"
},
{
"binary_name": "ubuntu-core-snapd-units",
"binary_version": "2.54.3+14.04~esm1"
},
{
"binary_name": "ubuntu-snappy",
"binary_version": "2.54.3+14.04~esm1"
},
{
"binary_name": "ubuntu-snappy-cli",
"binary_version": "2.54.3+14.04~esm1"
}
],
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
},
"database_specific": {
"cves_map": {
"ecosystem": "Ubuntu:Pro:14.04:LTS",
"cves": [
{
"id": "CVE-2021-4120",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/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": "medium"
}
]
},
{
"id": "CVE-2021-44730",
"severity": [
{
"type": "CVSS_V3",
"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": "Ubuntu",
"score": "high"
}
]
},
{
"id": "CVE-2021-44731",
"severity": [
{
"type": "CVSS_V3",
"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:H/PR:L/UI:N/S:C/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "high"
}
]
}
]
}
}
},
{
"package": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"name": "snapd",
"purl": "pkg:deb/ubuntu/snapd@2.54.3+16.04~esm2?arch=source&distro=esm-infra/xenial"
},
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.54.3+16.04~esm2"
}
]
}
],
"versions": [
"1.9",
"1.9.1.1",
"1.9.2",
"2.0",
"2.0.1",
"2.0.2",
"2.0.3",
"2.0.5",
"2.0.8",
"2.0.9",
"2.0.10",
"2.11+0.16.04",
"2.12+0.16.04",
"2.13",
"2.14.2~16.04",
"2.15.2ubuntu1",
"2.16ubuntu3",
"2.17.1ubuntu1",
"2.20.1ubuntu1",
"2.21",
"2.22.2",
"2.22.3",
"2.22.6",
"2.23.1",
"2.24.1",
"2.25",
"2.26.10",
"2.27.5",
"2.28.5",
"2.29.4.2",
"2.32.3.2",
"2.32.9",
"2.33.1ubuntu2",
"2.34.2",
"2.34.2ubuntu0.1",
"2.37.4",
"2.37.4ubuntu0.1",
"2.38",
"2.39.2",
"2.39.2ubuntu0.2",
"2.40",
"2.42.1",
"2.45.1",
"2.45.1ubuntu0.2",
"2.46.1",
"2.47.1",
"2.48",
"2.48.3"
],
"ecosystem_specific": {
"binaries": [
{
"binary_name": "golang-github-snapcore-snapd-dev",
"binary_version": "2.54.3+16.04~esm2"
},
{
"binary_name": "golang-github-ubuntu-core-snappy-dev",
"binary_version": "2.54.3+16.04~esm2"
},
{
"binary_name": "snap-confine",
"binary_version": "2.54.3+16.04~esm2"
},
{
"binary_name": "snapd",
"binary_version": "2.54.3+16.04~esm2"
},
{
"binary_name": "snapd-xdg-open",
"binary_version": "2.54.3+16.04~esm2"
},
{
"binary_name": "ubuntu-core-launcher",
"binary_version": "2.54.3+16.04~esm2"
},
{
"binary_name": "ubuntu-core-snapd-units",
"binary_version": "2.54.3+16.04~esm2"
},
{
"binary_name": "ubuntu-snappy",
"binary_version": "2.54.3+16.04~esm2"
},
{
"binary_name": "ubuntu-snappy-cli",
"binary_version": "2.54.3+16.04~esm2"
}
],
"availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
},
"database_specific": {
"cves_map": {
"ecosystem": "Ubuntu:Pro:16.04:LTS",
"cves": [
{
"id": "CVE-2021-3155",
"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": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N"
},
{
"type": "Ubuntu",
"score": "medium"
}
]
},
{
"id": "CVE-2021-4120",
"severity": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/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": "medium"
}
]
},
{
"id": "CVE-2021-44730",
"severity": [
{
"type": "CVSS_V3",
"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": "Ubuntu",
"score": "high"
}
]
},
{
"id": "CVE-2021-44731",
"severity": [
{
"type": "CVSS_V3",
"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:H/PR:L/UI:N/S:C/C:H/I:H/A:H"
},
{
"type": "Ubuntu",
"score": "high"
}
]
}
]
}
}
}
],
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-5292-3"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-3155"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-4120"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-44730"
},
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2021-44731"
}
]
}
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