CVE-2019-20398
- Source
- https://cve.org/CVERecord?id=CVE-2019-20398
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2019-20398.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2019-20398
- Downstream
- Published
- 2020-01-22T22:15:10.627Z
- Modified
- 2026-05-17T11:55:18.307760592Z
- Severity
-
- 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
A NULL pointer dereference is present in libyang before v1.0-r3 in the function lysextensioninstancesfree() due to a copy of unresolved extensions in lysrestr_dup(). Applications that use libyang to parse untrusted input yang files may crash.
- References
-
- https://lists.debian.org/debian-lts-announce/2023/09/msg00019.html
- https://github.com/CESNET/libyang/compare/v1.0-r2...v1.0-r3
- https://bugzilla.redhat.com/show_bug.cgi?id=1793935
- https://github.com/CESNET/libyang/commit/7852b272ef77f8098c35deea6c6f09cb78176f08
- https://github.com/CESNET/libyang/issues/773