{"id":"CVE-2019-20393","state":"PUBLISHED","title":"A double-free is present in libyang before v1.0-r1 in the function yyparse() when an empty description is used. Applications that use libyang to parse untrusted input yang files ma","description":"A double-free is present in libyang before v1.0-r1 in the function yyparse() when an empty description is used. 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.","publishedAt":"2020-01-22T00:00:00.000Z","updatedAt":"2024-08-05T02:39:09.836Z","severity":null,"assigner":"mitre","products":["n/a n/a"],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":["https://github.com/CESNET/libyang/compare/v0.16-r3...v1.0-r1","https://github.com/CESNET/libyang/issues/742","https://github.com/CESNET/libyang/commit/d9feacc4a590d35dbc1af21caf9080008b4450ed","https://bugzilla.redhat.com/show_bug.cgi?id=1793930","https://lists.debian.org/debian-lts-announce/2023/09/msg00019.html"],"weaknesses":[],"ingestedAt":"2026-10-29T19:45:50.141Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2019/20xxx/CVE-2019-20393.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2019-20393","state":"PUBLISHED","datePublished":"2020-01-22T00:00:00.000Z","dateUpdated":"2024-08-05T02:39:09.836Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2020-01-22T00:00:00.000Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"A double-free is present in libyang before v1.0-r1 in the function yyparse() when an empty description is used. 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."}],"affected":[{"vendor":"n/a","product":"n/a","versions":[{"version":"n/a","status":"affected"}]}],"references":[{"url":"https://github.com/CESNET/libyang/compare/v0.16-r3...v1.0-r1"},{"url":"https://github.com/CESNET/libyang/issues/742"},{"url":"https://github.com/CESNET/libyang/commit/d9feacc4a590d35dbc1af21caf9080008b4450ed"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1793930"},{"url":"https://lists.debian.org/debian-lts-announce/2023/09/msg00019.html","name":"[debian-lts-announce] 20230919 [SECURITY] [DLA 3572-1] libyang security update","tags":["mailing-list"]}],"problemTypes":[{"descriptions":[{"type":"text","lang":"en","description":"n/a"}]}],"providerMetadata":{"shortName":"mitre","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateUpdated":"2023-09-19T21:06:16.669Z"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://github.com/CESNET/libyang/compare/v0.16-r3...v1.0-r1","tags":["x_transferred"]},{"url":"https://github.com/CESNET/libyang/issues/742","tags":["x_transferred"]},{"url":"https://github.com/CESNET/libyang/commit/d9feacc4a590d35dbc1af21caf9080008b4450ed","tags":["x_transferred"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1793930","tags":["x_transferred"]},{"url":"https://lists.debian.org/debian-lts-announce/2023/09/msg00019.html","name":"[debian-lts-announce] 20230919 [SECURITY] [DLA 3572-1] libyang security update","tags":["mailing-list","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-05T02:39:09.836Z"}}]}}}