{"id":"DEBIAN-CVE-2026-120457","details":"libaec through 1.1.7 contains an out-of-bounds read vulnerability in m_se_decode() in src/decode.c that allows attackers to bypass a signed bounds check via an overlong fundamental sequence. Attackers can supply a crafted CCSDS 121.0/SZIP stream with 2^31 or more zero bits to crash the decoder or leak adjacent memory into decoded samples.","modified":"2026-11-04T01:00:06.639590451Z","published":"2026-11-02T15:17:29.507Z","upstream":["CVE-2026-120457"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-120457"}],"affected":[{"package":{"name":"libaec","ecosystem":"Debian:12","purl":"pkg:deb/debian/libaec?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.0.6-1","1.1.1-1","1.1.2-1","1.1.3-1","1.1.4-1","1.1.4-2","1.1.5-1","1.1.6-1","1.1.7-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-120457.json"}},{"package":{"name":"libaec","ecosystem":"Debian:13","purl":"pkg:deb/debian/libaec?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.3-1","1.1.4-1","1.1.4-2","1.1.5-1","1.1.6-1","1.1.7-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-120457.json"}},{"package":{"name":"libaec","ecosystem":"Debian:14","purl":"pkg:deb/debian/libaec?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.1.3-1","1.1.4-1","1.1.4-2","1.1.5-1","1.1.6-1","1.1.7-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-120457.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}