Vulnerability in Cesnet Libyang

CVE-2019-20395

A stack consumption issue is present in libyang before v1.0-r1 due to the self-referential union type containing leafrefs. Applications that use libyang to parse untrusted input yang files may crash.

EPSS: 0.018 (76.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2019-20395?
CVE-2019-20395 is a medium-severity vulnerability in Cesnet Libyang, classified under Uncontrolled Recursion. CVSS score: 6.5/10. Published 2020-01-22.
How severe is CVE-2019-20395?
Medium severity. CVSS v3 base score is 6.5 out of 10.