{"id":"DEBIAN-CVE-2026-49337","details":"libde265 is an open source implementation of the h.265 video codec. Prior to version 1.0.20, a crafted sequence of H.265 NAL units causes `decoder_context::read_slice_NAL()` (`libde265/decctx.cc:481`) to attach slice headers to a finished picture object that has no active image unit, resulting in attacker-controlled unbounded heap growth. The retained headers are never freed until the picture is released, which may not happen during continuous streaming. Version 1.0.20 patches the issue.","modified":"2026-09-20T16:00:06.699588421Z","published":"2026-06-19T21:17:01.720Z","upstream":["CVE-2026-49337"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-49337"}],"affected":[{"package":{"name":"libde265","ecosystem":"Debian:12","purl":"pkg:deb/debian/libde265?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.11-1+deb12u3"}]}],"versions":["1.0.11-1","1.0.11-1+deb12u1","1.0.11-1+deb12u2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-49337.json"}},{"package":{"name":"libde265","ecosystem":"Debian:13","purl":"pkg:deb/debian/libde265?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.15-1+deb13u1"}]}],"versions":["1.0.15-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-49337.json"}},{"package":{"name":"libde265","ecosystem":"Debian:14","purl":"pkg:deb/debian/libde265?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.1.1-1"}]}],"versions":["1.0.15-1","1.0.16-1","1.0.18-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2026-49337.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L"}]}