{"id":"USN-5292-2","summary":"snapd vulnerabilities","details":"USN-5292-1 fixed vulnerabilities in snapd. This update provides the\ncorresponding update for the riscv64 architecture.\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","modified":"2026-02-10T04:42:29Z","published":"2022-02-18T01:07:38Z","related":["UBUNTU-CVE-2021-3155","UBUNTU-CVE-2021-4120","UBUNTU-CVE-2021-44730","UBUNTU-CVE-2021-44731"],"upstream":["CVE-2021-3155","CVE-2021-4120","CVE-2021-44730","CVE-2021-44731","UBUNTU-CVE-2021-3155","UBUNTU-CVE-2021-4120","UBUNTU-CVE-2021-44730","UBUNTU-CVE-2021-44731"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5292-2"},{"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"}],"affected":[{"package":{"name":"snapd","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/snapd@2.54.3+20.04.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.54.3+20.04.1"}]}],"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","2.54.3+20.04"],"ecosystem_specific":{"binaries":[{"binary_version":"2.54.3+20.04.1","binary_name":"golang-github-snapcore-snapd-dev"},{"binary_version":"2.54.3+20.04.1","binary_name":"golang-github-ubuntu-core-snappy-dev"},{"binary_version":"2.54.3+20.04.1","binary_name":"snap-confine"},{"binary_version":"2.54.3+20.04.1","binary_name":"snapd"},{"binary_version":"2.54.3+20.04.1","binary_name":"snapd-xdg-open"},{"binary_version":"2.54.3+20.04.1","binary_name":"ubuntu-core-launcher"},{"binary_version":"2.54.3+20.04.1","binary_name":"ubuntu-core-snapd-units"},{"binary_version":"2.54.3+20.04.1","binary_name":"ubuntu-snappy"},{"binary_version":"2.54.3+20.04.1","binary_name":"ubuntu-snappy-cli"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5292-2.json","cves_map":{"ecosystem":"Ubuntu:20.04: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"}]}]}}}],"schema_version":"1.7.3"}