vulnerability
Ubuntu: (CVE-2019-20392): libyang vulnerability
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:N/AC:M/Au:N/C:N/I:N/A:P) | Jan 22, 2020 | Jun 26, 2025 | Jun 26, 2025 |
Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:N/A:P)
Published
Jan 22, 2020
Added
Jun 26, 2025
Modified
Jun 26, 2025
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.
Solution
no-fix-ubuntu-package
References
- CVE-2019-20392
- https://attackerkb.com/topics/CVE-2019-20392
- URL-https://bugzilla.redhat.com/show_bug.cgi?id=1793922
- URL-https://github.com/CESNET/libyang/commit/32fb4993bc8bb49e93e84016af3c10ea53964be5
- URL-https://github.com/CESNET/libyang/compare/v0.16-r3...v1.0-r1
- URL-https://github.com/CESNET/libyang/issues/723
- URL-https://www.cve.org/CVERecord?id=CVE-2019-20392
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