CVE-2019-20393
CVE-2019-20393
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 8.8 · High · EPSS 2.8% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
n/a
- Versions
- n/a: Affected
No fix published
libyang Debian:13
- Affected ranges
- ECOSYSTEM: < 1.0.176-1
Update to 1.0.176-1
libyang Debian:14
- Affected ranges
- ECOSYSTEM: < 1.0.176-1
Update to 1.0.176-1
libyang Ubuntu:20.04:LTS
- Versions
- 0.16.105-1
- 0.16.105-2
- 0.16.105-3
- 0.16.105-3build1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
Original sources
- 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
- https://nvd.nist.gov/vuln/detail/CVE-2019-20393