{"id":"USN-8902-1","summary":"libarchive vulnerability","details":"It was discovered that libarchive had a signed integer overflow in its\nZIP writer when handling encrypted entries with sizes near the maximum\nvalue. An attacker could possibly use this issue to cause libarchive to\ncrash or execute arbitrary code.","modified":"2026-10-09T01:57:56.859511043Z","published":"2026-10-08T13:14:05Z","related":["UBUNTU-CVE-2026-16517"],"upstream":["CVE-2026-16517","UBUNTU-CVE-2026-16517"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8902-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-16517"}],"affected":[{"package":{"name":"libarchive","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/libarchive?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.6.0-1ubuntu1.9"}]}],"versions":["3.4.3-2","3.4.3-2build1","3.5.2-1","3.5.2-1ubuntu1","3.6.0-1ubuntu1","3.6.0-1ubuntu1.1","3.6.0-1ubuntu1.2","3.6.0-1ubuntu1.3","3.6.0-1ubuntu1.4","3.6.0-1ubuntu1.5","3.6.0-1ubuntu1.6","3.6.0-1ubuntu1.7","3.6.0-1ubuntu1.8"],"ecosystem_specific":{"binaries":[{"binary_name":"libarchive-tools","binary_version":"3.6.0-1ubuntu1.9"},{"binary_name":"libarchive13","binary_version":"3.6.0-1ubuntu1.9"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:22.04:LTS","cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2026-16517"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8902-1.json"}},{"package":{"name":"libarchive","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/libarchive?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.7.2-2ubuntu0.9"}]}],"versions":["3.6.2-1ubuntu1","3.7.2-1ubuntu1","3.7.2-1ubuntu2","3.7.2-1.1ubuntu2","3.7.2-2","3.7.2-2ubuntu0.1","3.7.2-2ubuntu0.2","3.7.2-2ubuntu0.3","3.7.2-2ubuntu0.4","3.7.2-2ubuntu0.5","3.7.2-2ubuntu0.6","3.7.2-2ubuntu0.7","3.7.2-2ubuntu0.8"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libarchive-tools","binary_version":"3.7.2-2ubuntu0.9"},{"binary_name":"libarchive13t64","binary_version":"3.7.2-2ubuntu0.9"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:24.04:LTS","cves":[{"id":"CVE-2026-16517","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"Ubuntu","score":"medium"}]}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8902-1.json"}},{"package":{"name":"libarchive","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/libarchive?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.8.5-1ubuntu2.3"}]}],"versions":["3.7.7-0ubuntu3","3.8.5-1ubuntu1","3.8.5-1ubuntu2","3.8.5-1ubuntu2.1","3.8.5-1ubuntu2.2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"3.8.5-1ubuntu2.3","binary_name":"libarchive-tools"},{"binary_name":"libarchive13t64","binary_version":"3.8.5-1ubuntu2.3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8902-1.json","cves_map":{"cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2026-16517"}],"ecosystem":"Ubuntu:26.04:LTS"}}}],"schema_version":"1.9.0"}