{"id":"USN-5291-1","summary":"libarchive vulnerabilities","details":"It was discovered that libarchive incorrectly handled symlinks. If a\nuser or automated system were tricked into processing a specially crafted\narchive, an attacker could possibly use this issue to change modes, times,\nACLs, and flags on arbitrary files. (CVE-2021-23177, CVE-2021-31566)\n\nIt was discovered that libarchive incorrectly handled certain RAR archives.\nIf a user or automated system were tricked into processing a specially\ncrafted RAR archive, an attacker could use this issue to cause libarchive\nto crash, resulting in a denial of service, or possibly execute arbitrary\ncode. (CVE-2021-36976)\n","modified":"2026-02-10T04:42:29Z","published":"2022-02-17T13:54:10Z","related":["UBUNTU-CVE-2021-23177","UBUNTU-CVE-2021-31566","UBUNTU-CVE-2021-36976"],"upstream":["CVE-2021-23177","CVE-2021-31566","CVE-2021-36976","UBUNTU-CVE-2021-23177","UBUNTU-CVE-2021-31566","UBUNTU-CVE-2021-36976"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-5291-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-23177"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-31566"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-36976"}],"affected":[{"package":{"name":"libarchive","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/libarchive@3.4.0-2ubuntu1.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.4.0-2ubuntu1.1"}]}],"versions":["3.4.0-1","3.4.0-1build1","3.4.0-1ubuntu2","3.4.0-2ubuntu1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libarchive-dev","binary_version":"3.4.0-2ubuntu1.1"},{"binary_name":"libarchive-tools","binary_version":"3.4.0-2ubuntu1.1"},{"binary_name":"libarchive13","binary_version":"3.4.0-2ubuntu1.1"}]},"database_specific":{"cves_map":{"cves":[{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}],"id":"CVE-2021-23177"},{"severity":[{"score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","type":"CVSS_V3"},{"score":"low","type":"Ubuntu"}],"id":"CVE-2021-31566"},{"severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","type":"CVSS_V3"},{"score":"medium","type":"Ubuntu"}],"id":"CVE-2021-36976"}],"ecosystem":"Ubuntu:20.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5291-1.json"}}],"schema_version":"1.7.3"}