Vulnerability Monitor

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CVE-2019-19333

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.

Published

2019-12-06T16:15:10.827

Last Modified

2024-11-21T04:34:35.697

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 9.8 (CRITICAL)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: PARTIAL
Exploitability Score

10.0

Impact Score

6.4

Weaknesses
  • Type: Secondary
    CWE-121
  • Type: Primary
    CWE-787
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application cesnet libyang 0.11 Yes
Application cesnet libyang 0.11 Yes
Application cesnet libyang 0.12 Yes
Application cesnet libyang 0.12 Yes
Application cesnet libyang 0.13 Yes
Application cesnet libyang 0.13 Yes
Application cesnet libyang 0.14 Yes
Application cesnet libyang 0.15 Yes
Application cesnet libyang 0.16 Yes
Application cesnet libyang 0.16 Yes
Application cesnet libyang 0.16 Yes
Application cesnet libyang 1.0 Yes
Application cesnet libyang 1.0 Yes
Application cesnet libyang 1.0 Yes
Application cesnet libyang 1.0 Yes
Operating System redhat enterprise_linux 8.0 Yes
References