VDB
CVE-2019-20393
CVE-2019-20393
PUBLISHED
CVSS 8.800000190734863 HIGH
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.
EPSS 2.79% · 85.4th percentile
Risk Scores
CVSS 3.1
8.800000190734863
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score
2.79%
85.4th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:20.04:LTS | libyang | 0, 0.16.105-1, 0.16.105-2 |
Timeline
- Jan 22, 2020 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Dec 28, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 28, 2022 EPSS Score
- May 2, 2022 EPSS Score
- Jul 4, 2022 EPSS Score
- Sep 5, 2022 EPSS Score
- Nov 7, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2019-20393 third-party-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1793930 third-party-advisory
- https://github.com/CESNET/libyang/commit/d9feacc4a590d35dbc1af21caf9080008b4450ed third-party-advisory
- https://github.com/CESNET/libyang/issues/742 third-party-advisory
- https://github.com/CESNET/libyang/compare/v0.16-r3...v1.0-r1 third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2019-20393 third-party-advisory