{"id":"USN-8973-1","summary":"libmspack vulnerability","details":"It was discovered that libmspack did not properly initialize pointers\nwhen handling errors while reading KWAJ archive headers. An attacker\ncould possibly use this issue to cause libmspack to crash, resulting\nin a denial of service, or execute arbitrary code.","modified":"2026-11-04T03:43:13.405691229Z","published":"2026-11-03T14:42:47Z","related":["UBUNTU-CVE-2026-110602"],"upstream":["CVE-2026-110602","UBUNTU-CVE-2026-110602"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8973-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-110602"}],"affected":[{"package":{"name":"libmspack","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/libmspack?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.10.1-2ubuntu0.1"}]}],"versions":["0.10.1-2build1","0.10.1-2build2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libmspack0","binary_version":"0.10.1-2ubuntu0.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8973-1.json","cves_map":{"ecosystem":"Ubuntu:22.04:LTS","cves":[{"severity":[{"score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H","type":"CVSS_V3"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2026-110602"}]}}},{"package":{"name":"libmspack","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/libmspack?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.11-1.1ubuntu0.24.04.1"}]}],"versions":["0.11-1","0.11-1.1","0.11-1.1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"libmspack0t64","binary_version":"0.11-1.1ubuntu0.24.04.1"}],"availability":"No subscription required"},"database_specific":{"cves_map":{"cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2026-110602"}],"ecosystem":"Ubuntu:24.04:LTS"},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8973-1.json"}},{"package":{"name":"libmspack","ecosystem":"Ubuntu:26.10","purl":"pkg:deb/ubuntu/libmspack?arch=source&distro=stonking"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.11-1.1ubuntu0.26.10.1"}]}],"versions":["0.11-1.1build2"],"ecosystem_specific":{"binaries":[{"binary_name":"libmspack0t64","binary_version":"0.11-1.1ubuntu0.26.10.1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8973-1.json","cves_map":{"ecosystem":"Ubuntu:26.10","cves":[{"id":"CVE-2026-110602","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]}]}}},{"package":{"name":"libmspack","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/libmspack?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.11-1.1ubuntu0.26.04.1"}]}],"versions":["0.11-1.1build1","0.11-1.1build2"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_version":"0.11-1.1ubuntu0.26.04.1","binary_name":"libmspack0t64"}]},"database_specific":{"cves_map":{"ecosystem":"Ubuntu:26.04:LTS","cves":[{"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}],"id":"CVE-2026-110602"}]},"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8973-1.json"}}],"schema_version":"1.9.2"}