CVEvulnerability

CVE-2019-19334

9.8 CRITICAL Published 2019-12-06 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2019-12-06
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 3.0 ([email protected])
8.1 HIGH — CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
Weaknesses
CWE-121, CWE-787

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.

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 • cesnet libyang 1.0 • redhat enterprise linux 8.0 • fedoraproject fedora 31

Related

Weakness · CWE (2)

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

References