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vuln-ubuntu/data/osv/usn/USN-5292-1.json
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{
"schema_version": "1.7.0",
"id": "USN-5292-1",
"summary": "snapd vulnerabilities",
"details": "James Troup discovered that snap did not properly manage the permissions for\nthe snap directories. A local attacker could possibly use this issue to expose\nsensitive information. (CVE-2021-3155)\n\nIan Johnson discovered that snapd did not properly validate content interfaces\nand layout paths. A local attacker could possibly use this issue to inject\narbitrary AppArmor policy rules, resulting in a bypass of intended access\nrestrictions. (CVE-2021-4120)\n\nThe Qualys Research Team discovered that snapd did not properly validate the\nlocation of the snap-confine binary. A local attacker could possibly use this\nissue to execute other arbitrary binaries and escalate privileges.\n(CVE-2021-44730)\n\nThe Qualys Research Team discovered that a race condition existed in the snapd\nsnap-confine binary when preparing a private mount namespace for a snap. A\nlocal attacker could possibly use this issue to escalate privileges and\nexecute 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": "2022-02-17T17:24:49Z",
"modified": "2026-02-10T04:42:29Z",
"affected": [
{
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "snapd",
"purl": "pkg:deb/ubuntu/snapd@2.54.3+18.04?arch=source&distro=bionic"
},
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.54.3+18.04"
}
]
}
],
"versions": [
"2.28.5+17.10",
"2.29.4.1+18.04",
"2.29.4.2+18.04",
"2.31.1+18.04",
"2.32+18.04~pre5",
"2.32+18.04~pre6",
"2.32+18.04",
"2.32.3.2+18.04",
"2.32.5+18.04",
"2.32.8+18.04",
"2.32.9+18.04",
"2.33.1+18.04ubuntu2",
"2.34.2+18.04",
"2.34.2+18.04.1",
"2.37.1+18.04",
"2.37.1.1+18.04",
"2.37.4+18.04",
"2.37.4+18.04.1",
"2.38+18.04",
"2.39.2+18.04",
"2.40+18.04",
"2.42.1+18.04",
"2.45.1+18.04",
"2.45.1+18.04.2",
"2.46.1+18.04",
"2.47.1+18.04",
"2.48+18.04",
"2.48.3+18.04",
"2.49.2+18.04",
"2.51.1+18.04",
"2.54.2+18.04ubuntu1"
],
"ecosystem_specific": {
"binaries": [
{
"binary_name": "golang-github-snapcore-snapd-dev",
"binary_version": "2.54.3+18.04"
},
{
"binary_name": "golang-github-ubuntu-core-snappy-dev",
"binary_version": "2.54.3+18.04"
},
{
"binary_name": "snap-confine",
"binary_version": "2.54.3+18.04"
},
{
"binary_name": "snapd",
"binary_version": "2.54.3+18.04"
},
{
"binary_name": "snapd-xdg-open",
"binary_version": "2.54.3+18.04"
},
{
"binary_name": "ubuntu-core-launcher",
"binary_version": "2.54.3+18.04"
},
{
"binary_name": "ubuntu-core-snapd-units",
"binary_version": "2.54.3+18.04"
},
{
"binary_name": "ubuntu-snappy",
"binary_version": "2.54.3+18.04"
},
{
"binary_name": "ubuntu-snappy-cli",
"binary_version": "2.54.3+18.04"
}
],
"availability": "No subscription required"
},
"database_specific": {
"cves_map": {
"ecosystem": "Ubuntu:18.04: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"
}
]
}
]
}
}
},
{
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "snapd",
"purl": "pkg:deb/ubuntu/snapd@2.54.3+20.04?arch=source&distro=focal"
},
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "2.54.3+20.04"
}
]
}
],
"versions": [
"2.41+19.10.1",
"2.42.1+20.04",
"2.43.3+git1.8109f8",
"2.44~pre1+20.04",
"2.44+20.04",
"2.44.2+20.04",
"2.44.3+20.04",
"2.45.1+20.04",
"2.45.1+20.04.2",
"2.46.1+20.04",
"2.47.1+20.04",
"2.48+20.04",
"2.48.3+20.04",
"2.49.2+20.04",
"2.51.1+20.04ubuntu2",
"2.54.2+20.04ubuntu2"
],
"ecosystem_specific": {
"binaries": [
{
"binary_name": "golang-github-snapcore-snapd-dev",
"binary_version": "2.54.3+20.04"
},
{
"binary_name": "golang-github-ubuntu-core-snappy-dev",
"binary_version": "2.54.3+20.04"
},
{
"binary_name": "snap-confine",
"binary_version": "2.54.3+20.04"
},
{
"binary_name": "snapd",
"binary_version": "2.54.3+20.04"
},
{
"binary_name": "snapd-xdg-open",
"binary_version": "2.54.3+20.04"
},
{
"binary_name": "ubuntu-core-launcher",
"binary_version": "2.54.3+20.04"
},
{
"binary_name": "ubuntu-core-snapd-units",
"binary_version": "2.54.3+20.04"
},
{
"binary_name": "ubuntu-snappy",
"binary_version": "2.54.3+20.04"
},
{
"binary_name": "ubuntu-snappy-cli",
"binary_version": "2.54.3+20.04"
}
],
"availability": "No subscription required"
},
"database_specific": {
"cves_map": {
"ecosystem": "Ubuntu:20.04:LTS",
"cves": []
}
}
}
],
"references": [
{
"type": "ADVISORY",
"url": "https://ubuntu.com/security/notices/USN-5292-1"
},
{
"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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