Vulnerability Monitor

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CVE-2013-6393

The yaml_parser_scan_tag_uri function in scanner.c in LibYAML before 0.1.5 performs an incorrect cast, which allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via crafted tags in a YAML document, which triggers a heap-based buffer overflow.

Published

2014-02-06T22:55:03.217

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 6.8 (MEDIUM)

CVSSv2 Vector

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

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

8.6

Impact Score

6.4

Weaknesses
  • Type: Primary
    CWE-119
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application pyyaml libyaml ≤ 0.1.4 Yes
Application pyyaml libyaml 0.0.1 Yes
Application pyyaml libyaml 0.1.1 Yes
Application pyyaml libyaml 0.1.2 Yes
Application pyyaml libyaml 0.1.3 Yes
Operating System canonical ubuntu_linux 12.04 Yes
Operating System canonical ubuntu_linux 12.10 Yes
Operating System canonical ubuntu_linux 13.10 Yes
Application redhat openstack 3.0 Yes
Application redhat openstack 4.0 Yes
Operating System debian debian_linux 6.0 Yes
Operating System debian debian_linux 7.0 Yes
Operating System opensuse leap 42.1 Yes
Operating System opensuse opensuse 11.4 Yes
Operating System opensuse opensuse 13.1 Yes
Operating System opensuse opensuse 13.2 Yes
References