Vulnerability Monitor

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CVE-2009-5138

GnuTLS before 2.7.6, when the GNUTLS_VERIFY_ALLOW_X509_V1_CA_CRT flag is not enabled, treats version 1 X.509 certificates as intermediate CAs, which allows remote attackers to bypass intended restrictions by leveraging a X.509 V1 certificate from a trusted CA to issue new certificates, a different vulnerability than CVE-2014-1959.

Published

2014-03-07T00:10:53.323

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 5.8 (MEDIUM)

CVSSv2 Vector

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

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

8.6

Impact Score

4.9

Weaknesses
  • Type: Primary
    CWE-264
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application gnu gnutls ≤ 2.7.5 Yes
Application gnu gnutls 2.7.0 Yes
Application gnu gnutls 2.7.1 Yes
Application gnu gnutls 2.7.2 Yes
Application gnu gnutls 2.7.3 Yes
Application gnu gnutls 2.7.4 Yes
References