VDB
CVE-2019-20396
CVE-2019-20396
PUBLISHED
CVSS 6.5 MEDIUM
A segmentation fault is present in yyparse in libyang before v1.0-r1 due to a malformed pattern statement value during lys_parse_path parsing.
EPSS 1.93% · 79.8th percentile
Risk Scores
CVSS 3.1
6.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
EPSS Score
1.93%
79.8th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:20.04:LTS | libyang | 0, 0.16.105-2, 0.16.105-3build1 |
Timeline
- Jan 22, 2020 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 25, 2021 EPSS Score
- Oct 27, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Mar 3, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 5, 2022 EPSS Score
- Jul 7, 2022 EPSS Score
- Sep 9, 2022 EPSS Score
- Nov 11, 2022 EPSS Score
References
- https://github.com/CESNET/libyang/issues/740 discussion
- https://github.com/CESNET/libyang/compare/v0.16-r3...v1.0-r1 third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2019-20396 third-party-advisory
- https://ubuntu.com/security/CVE-2019-20396 advisory
- https://github.com/CESNET/libyang/commit/a1f17693904ed6fecc8902c747fc50a8f20e6af8 fix