{"id":"USN-5292-4","summary":"snapd regression","details":"USN-5292-1 fixed a vulnerability in snapd. Unfortunately that update introduced\na regression that could break the fish shell. This update fixes the problem.\n\nWe apologize for the inconvenience.\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":"2022-02-24T13:23:26Z","references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5292-4"},{"type":"REPORT","url":"https://bugs.launchpad.net/ubuntu/+source/snapd/+bug/1961365"},{"type":"REPORT","url":"https://bugs.launchpad.net/ubuntu/+source/snapd/+bug/1961791"}],"affected":[{"package":{"name":"snapd","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/snapd@2.54.3+14.04.0ubuntu0.1~esm3?arch=source&distro=trusty/esm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.54.3+14.04.0ubuntu0.1~esm3"}]}],"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","2.54.3+14.04~esm1","2.54.3+14.04.0ubuntu0.1~esm2"],"ecosystem_specific":{"availability":"Available 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