Vulnerability Monitor

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CVE-2013-6420

The asn1_time_to_time_t function in ext/openssl/openssl.c in PHP before 5.3.28, 5.4.x before 5.4.23, and 5.5.x before 5.5.7 does not properly parse (1) notBefore and (2) notAfter timestamps in X.509 certificates, which allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via a crafted certificate that is not properly handled by the openssl_x509_parse function.

Published

2013-12-17T04:46:45.877

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 7.5 (HIGH)

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: Primary
    CWE-119
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application php php 5.4.0 Yes
Application php php 5.4.1 Yes
Application php php 5.4.2 Yes
Application php php 5.4.3 Yes
Application php php 5.4.4 Yes
Application php php 5.4.5 Yes
Application php php 5.4.6 Yes
Application php php 5.4.7 Yes
Application php php 5.4.8 Yes
Application php php 5.4.9 Yes
Application php php 5.4.10 Yes
Application php php 5.4.11 Yes
Application php php 5.4.12 Yes
Application php php 5.4.12 Yes
Application php php 5.4.12 Yes
Application php php 5.4.13 Yes
Application php php 5.4.13 Yes
Application php php 5.4.14 Yes
Application php php 5.4.14 Yes
Application php php 5.4.15 Yes
Application php php 5.4.15 Yes
Application php php 5.4.16 Yes
Application php php 5.4.16 Yes
Application php php 5.4.17 Yes
Application php php 5.4.18 Yes
Application php php 5.4.19 Yes
Application php php 5.4.20 Yes
Application php php 5.4.21 Yes
Application php php 5.4.22 Yes
Operating System opensuse opensuse 11.4 Yes
Operating System opensuse opensuse 12.2 Yes
Operating System opensuse opensuse 12.3 Yes
Operating System opensuse opensuse 13.1 Yes
Operating System apple mac_os_x ≤ 10.9.1 Yes
Application php php ≤ 5.3.27 Yes
Application php php 5.3.0 Yes
Application php php 5.3.1 Yes
Application php php 5.3.2 Yes
Application php php 5.3.3 Yes
Application php php 5.3.4 Yes
Application php php 5.3.5 Yes
Application php php 5.3.6 Yes
Application php php 5.3.7 Yes
Application php php 5.3.8 Yes
Application php php 5.3.9 Yes
Application php php 5.3.10 Yes
Application php php 5.3.11 Yes
Application php php 5.3.12 Yes
Application php php 5.3.13 Yes
Application php php 5.3.14 Yes
Application php php 5.3.15 Yes
Application php php 5.3.16 Yes
Application php php 5.3.17 Yes
Application php php 5.3.18 Yes
Application php php 5.3.19 Yes
Application php php 5.3.20 Yes
Application php php 5.3.21 Yes
Application php php 5.3.22 Yes
Application php php 5.3.23 Yes
Application php php 5.3.24 Yes
Application php php 5.3.25 Yes
Application php php 5.3.26 Yes
Application php php 5.5.0 Yes
Application php php 5.5.0 Yes
Application php php 5.5.0 Yes
Application php php 5.5.0 Yes
Application php php 5.5.0 Yes
Application php php 5.5.0 Yes
Application php php 5.5.0 Yes
Application php php 5.5.0 Yes
Application php php 5.5.0 Yes
Application php php 5.5.0 Yes
Application php php 5.5.0 Yes
Application php php 5.5.0 Yes
Application php php 5.5.0 Yes
Application php php 5.5.1 Yes
Application php php 5.5.2 Yes
Application php php 5.5.3 Yes
Application php php 5.5.4 Yes
Application php php 5.5.5 Yes
Application php php 5.5.6 Yes
References