CVEvulnerability
CVE-2019-20395
6.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2020-01-22
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 4.3 MEDIUM — AV:N/AC:M/Au:N/C:N/I:N/A:P
- Weaknesses
- CWE-674
Description
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.
Affected configurations
• cesnet libyang 0.11
• cesnet libyang 0.12
• cesnet libyang 0.13
• cesnet libyang 0.14
• cesnet libyang 0.15
• cesnet libyang 0.16
Related
Weakness · CWE (1)
- CWE-674 Uncontrolled Recursion weakness
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1793924 Issue Tracking, Third Party Advisory
- https://github.com/CESNET/libyang/commit/4e610ccd87a2ba9413819777d508f71163fcc237 Third Party Advisory
- https://github.com/CESNET/libyang/compare/v0.16-r3...v1.0-r1 Third Party Advisory
- https://github.com/CESNET/libyang/issues/724 Exploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/09/msg00019.html lists.debian.org
- https://bugzilla.redhat.com/show_bug.cgi?id=1793924 Issue Tracking, Third Party Advisory
- https://github.com/CESNET/libyang/commit/4e610ccd87a2ba9413819777d508f71163fcc237 Third Party Advisory
- https://github.com/CESNET/libyang/compare/v0.16-r3...v1.0-r1 Third Party Advisory
- https://github.com/CESNET/libyang/issues/724 Exploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/09/msg00019.html lists.debian.org