CVE-2019-20393
- Source
- https://cve.org/CVERecord?id=CVE-2019-20393
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2019-20393.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2019-20393
- Downstream
- Published
- 2020-01-22T22:15:10.237Z
- Modified
- 2026-05-17T11:54:35.322888029Z
- Severity
-
- 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
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.
- References
-
- https://lists.debian.org/debian-lts-announce/2023/09/msg00019.html
- https://github.com/CESNET/libyang/compare/v0.16-r3...v1.0-r1
- https://bugzilla.redhat.com/show_bug.cgi?id=1793930
- https://github.com/CESNET/libyang/commit/d9feacc4a590d35dbc1af21caf9080008b4450ed
- https://github.com/CESNET/libyang/issues/742