{"action":"Upgrade libyang to 1.0.176-1 or later.","affected":[{"fixed":"1.0.176-1","introduced":"0"}],"component":"libyang","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["1.0.176-1"],"id":"tcs_01M5NE4RSC8M60GJNZWNCN0F3H","modified_at":"2026-09-21T07:01:01.691373084Z","published_at":"2020-01-22T22:15:10.080Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2019-20391","https://security-tracker.debian.org/tracker/CVE-2019-20391"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2019-20391","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2019-20391"}],"summary":"An invalid memory access flaw is present in libyang before v1.0-r3 in the function resolve_feature_value() when an if-feature statement is used inside a bit. Applications that use libyang to parse unt"}