{"id":"PYSEC-2020-186","details":"A double-free is present in libyang before v1.0-r3 in the function yyparse() when a type statement in used in a notification statement. Applications that use libyang to parse untrusted input yang files may be vulnerable to this flaw, which would cause a crash or potentially code execution.","modified":"2023-03-14T07:01:09.415440Z","published":"2020-01-22T22:15:00Z","withdrawn":"2023-03-14T07:01:09.415440Z","references":[{"type":"WEB","url":"https://github.com/CESNET/libyang/commit/6cc51b1757dfbb7cff92de074ada65e8523289a6"},{"type":"WEB","url":"https://github.com/CESNET/libyang/compare/v1.0-r2...v1.0-r3"},{"type":"WEB","url":"https://github.com/CESNET/libyang/issues/769"},{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1793932"}],"schema_version":"1.7.3"}