Double Free in Cesnet Libyang
CVE-2019-20393
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…
Vulnerability class: Double Free
EPSS: 0.028 (84.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Cesnet Libyang — versions 0.11, 0.12, 0.13
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (Third Party Advisory)
- cve@mitre.org (Exploit, Third Party Advisory)
- cve@mitre.org (Patch, Third Party Advisory)
- cve@mitre.org (Patch, Third Party Advisory, Issue Tracking)
- cve@mitre.org (mailing-list)
Frequently asked questions
- What is CVE-2019-20393?
- CVE-2019-20393 is a high-severity vulnerability in Cesnet Libyang, classified under Double Free. CVSS score: 8.8/10. Published 2020-01-22.
- How severe is CVE-2019-20393?
- High severity. CVSS v3 base score is 8.8 out of 10.