{"id":"ALPINE-CVE-2021-28903","details":"A stack overflow in libyang \u003c= v1.0.225 can cause a denial of service through function lyxml_parse_mem(). lyxml_parse_elem() function will be called recursively, which will consume stack space and lead to crash.","modified":"2026-11-03T06:32:27.883023153Z","published":"2021-05-20T19:15:07.637Z","upstream":["CVE-2021-28903"],"references":[{"type":"ADVISORY","url":"https://security.alpinelinux.org/vuln/CVE-2021-28903"}],"affected":[{"package":{"name":"libyang","ecosystem":"Alpine:v3.13","purl":"pkg:apk/alpine/libyang?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.184-r1"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-28903.json"}},{"package":{"name":"libyang","ecosystem":"Alpine:v3.14","purl":"pkg:apk/alpine/libyang?arch=source"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.0.215-r1"}]}],"ecosystem_specific":{},"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2021-28903.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}