{"action":"Upgrade libtasn1-6 to 4.20.0-2+deb13u1 or later.","affected":[{"fixed":"4.20.0-2+deb13u1","introduced":"0"}],"component":"libtasn1-6","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["4.20.0-2+deb13u1"],"id":"tcs_01M5NMX7CNT7TS9FJSWYXEBFB6","modified_at":"2026-09-01T20:05:41.053836956Z","published_at":"2026-01-07T22:15:43.200Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-13151","https://security-tracker.debian.org/tracker/CVE-2025-13151"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-13151#Debian:13/libtasn1-6","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-13151"}],"summary":"Stack-based buffer overflow in libtasn1 version: v4.20.0. The function fails to validate the size of input data resulting in a buffer overflow in asn1_expend_octet_string."}