CVE-2019-19333

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

In all versions of libyang before 1.0-r5, a stack-based buffer overflow was discovered in the way libyang parses YANG files with a leaf of type "bits". An application that uses libyang to parse untrusted YANG files may be vulnerable to this flaw, which would allow an attacker to cause a denial of service or possibly gain code execution.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-121 CWE-787

Affected software

Vendor	Product	Versions
Red Hat	libyang	libyang all versions before 1.0-r5

References

Timeline

Published: Dec 6, 2019
Last modified: Jun 17, 2026
NVD status: Modified

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