{"id":"UBUNTU-CVE-2024-56431","details":"oc_huff_tree_unpack in huffdec.c in libtheora in Theora through 1.0 7180717 has an invalid negative left shift. NOTE: this is disputed by third parties because there is no evidence of a security impact, e.g., an application would not crash.","modified":"2025-07-16T07:21:12.427166Z","published":"2024-12-25T17:15:00Z","withdrawn":"2025-07-18T17:01:49Z","upstream":["CVE-2024-56431"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2024-56431"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2024-56431"},{"type":"REPORT","url":"https://github.com/UnionTech-Software/libtheora-CVE-2024-56431-PoC"},{"type":"REPORT","url":"https://github.com/advisories/GHSA-8xp8-gmmj-xc8w"},{"type":"REPORT","url":"https://github.com/xiph/theora/blob/7180717276af1ebc7da15c83162d6c5d6203aabf/lib/huffdec.c#L193"},{"type":"REPORT","url":"https://github.com/xiph/theora/issues/17#issuecomment-2480630603"}],"affected":[{"package":{"name":"libtheora","ecosystem":"Ubuntu:25.04","purl":"pkg:deb/ubuntu/libtheora@1.2.0~alpha1+dfsg-6?arch=source&distro=plucky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.2.0~alpha1+dfsg-6"}]}],"versions":["1.1.1+dfsg.1-17","1.2.0~alpha1+dfsg-5"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"libtheora-bin","binary_version":"1.2.0~alpha1+dfsg-6"},{"binary_name":"libtheora-bin-dbgsym","binary_version":"1.2.0~alpha1+dfsg-6"},{"binary_name":"libtheora-dev","binary_version":"1.2.0~alpha1+dfsg-6"},{"binary_name":"libtheora-doc","binary_version":"1.2.0~alpha1+dfsg-6"},{"binary_name":"libtheora0","binary_version":"1.2.0~alpha1+dfsg-6"},{"binary_name":"libtheora0-dbgsym","binary_version":"1.2.0~alpha1+dfsg-6"},{"binary_name":"libtheoradec1","binary_version":"1.2.0~alpha1+dfsg-6"},{"binary_name":"libtheoradec1-dbgsym","binary_version":"1.2.0~alpha1+dfsg-6"},{"binary_name":"libtheoraenc1","binary_version":"1.2.0~alpha1+dfsg-6"},{"binary_version":"1.2.0~alpha1+dfsg-6","binary_name":"libtheoraenc1-dbgsym"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-56431.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}