VulnerabilityModified
CVE-2019-20392
Applications that use libyang to parse untrusted input yang files may crash.
MEDIUM 6.5EPSS 1.86%
Does this matter?
Lower severity and a low EPSS score (1.86%). Track it; it rarely justifies an emergency change on its own.
Description
An invalid memory access flaw is present in libyang before v1.0-r1 in the function resolve_feature_value() when an if-feature statement is used inside a list key node, and the feature used is not defined. Applications that use libyang to parse untrusted input yang files may crash.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- EPSS
- 1.86% probability · 78th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- cesnet/libyang
- Source
- cve@mitre.org
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1793922Issue Tracking, Patch, Third Party Advisory
- https://github.com/CESNET/libyang/commit/32fb4993bc8bb49e93e84016af3c10ea53964be5Patch, Third Party Advisory
- https://github.com/CESNET/libyang/compare/v0.16-r3...v1.0-r1Third Party Advisory
- https://github.com/CESNET/libyang/issues/723Exploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/09/msg00019.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1793922Issue Tracking, Patch, Third Party Advisory
- https://github.com/CESNET/libyang/commit/32fb4993bc8bb49e93e84016af3c10ea53964be5Patch, Third Party Advisory
- https://github.com/CESNET/libyang/compare/v0.16-r3...v1.0-r1Third Party Advisory
- https://github.com/CESNET/libyang/issues/723Exploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/09/msg00019.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.