{"id":"DEBIAN-CVE-2026-88371","details":"ZBar commit 2ea2ca58 contains an undefined-behavior vulnerability in the Code 128 decode6() function. When processing specially crafted Code 128 input, decode_e() can return -1 for an invalid edge pattern, and decode6() subsequently left-shifts this negative signed value while constructing the edge signature. The operation invokes undefined behavior and can terminate trap-mode UBSan builds with SIGILL, resulting in denial of service.","modified":"2026-09-26T23:00:08.162018283Z","published":"2026-09-24T16:17:14.100Z","upstream":["CVE-2026-88371"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-88371"}],"affected":[{"package":{"name":"zbar","ecosystem":"Debian:12","purl":"pkg:deb/debian/zbar?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.23.92-7","0.23.92-7+deb12u1","0.23.92-8","0.23.92-9","0.23.93-1","0.23.93-1.1","0.23.93-1.1~exp1","0.23.93-10","0.23.93-2","0.23.93-3","0.23.93-4","0.23.93-5","0.23.93-6","0.23.93-7","0.23.93-8","0.23.93-9"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-88371.json"}},{"package":{"name":"zbar","ecosystem":"Debian:13","purl":"pkg:deb/debian/zbar?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.23.93-10","0.23.93-8","0.23.93-9"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-88371.json"}},{"package":{"name":"zbar","ecosystem":"Debian:14","purl":"pkg:deb/debian/zbar?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.23.93-10","0.23.93-8","0.23.93-9"],"ecosystem_specific":{"urgency":"unimportant"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-88371.json"}}],"schema_version":"1.9.0"}