{"id":"DEBIAN-CVE-2026-125403","details":"Ettercap through 0.8.4.1 contains an out-of-bounds read and size_t underflow vulnerability in sslw_remove_sts() in src/ec_sslwrap.c, caused by a stale length and an unchecked memmem() result when stripping Strict-Transport-Security headers. A malicious HTTPS server whose response passes through Ettercap's SSL interception can trigger out-of-bounds reads and memory corruption in the Ettercap process, which normally runs as root.","modified":"2026-11-10T10:00:26.257622944Z","published":"2026-11-10T00:17:14.860Z","upstream":["CVE-2026-125403"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-125403"}],"affected":[{"package":{"name":"ettercap","ecosystem":"Debian:12","purl":"pkg:deb/debian/ettercap?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:0.8.3.1-11","1:0.8.3.1-12","1:0.8.3.1-13","1:0.8.3.1-14","1:0.8.3.1-15","1:0.8.3.1-16","1:0.8.4-1","1:0.8.4-2","1:0.8.4-3","1:0.8.4-4","1:0.8.4-5","1:0.8.4.1-1","1:0.8.4.1-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-125403.json"}},{"package":{"name":"ettercap","ecosystem":"Debian:13","purl":"pkg:deb/debian/ettercap?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:0.8.3.1-14","1:0.8.3.1-15","1:0.8.3.1-16","1:0.8.4-1","1:0.8.4-2","1:0.8.4-3","1:0.8.4-4","1:0.8.4-5","1:0.8.4.1-1","1:0.8.4.1-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-125403.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H"}]}