{"action":"Upgrade libyang to 3.4.2+dfsg-2 or later.","affected":[{"fixed":"3.4.2+dfsg-2","introduced":"0"}],"component":"libyang","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["3.4.2+dfsg-2"],"id":"tcs_01M5NFHXH3TSZH01DWST24TRQE","modified_at":"2026-10-23T18:03:25.817189288Z","published_at":"2021-05-20T19:15:07.673Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-28904","https://security-tracker.debian.org/tracker/CVE-2021-28904"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-28904#Debian:14/libyang","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-28904"}],"summary":"In function ext_get_plugin() in libyang <= v1.0.225, it doesn't check whether the value of revision is NULL. If revision is NULL, the operation of strcmp(revision, ext_plugins[u].revision) will lead t"}