VULNERABILITY INTELLIGENCE

CVE-2019-19334

CVSS score9.8 CRITICAL
EPSS probability3.87%
CISA KEVNot currently listed
Published2019-12-06
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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 "identityref". 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.

Weakness classification

  • CWE-121: Stack-based Buffer Overflow
  • CWE-787: Out-of-bounds Write

Primary references