Vulnerability Monitor

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CVE-2017-12933

The finish_nested_data function in ext/standard/var_unserializer.re in PHP before 5.6.31, 7.0.x before 7.0.21, and 7.1.x before 7.1.7 is prone to a buffer over-read while unserializing untrusted data. Exploitation of this issue can have an unspecified impact on the integrity of PHP.

Published

2017-08-18T03:29:00.230

Last Modified

2025-04-20T01:37:25.860

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 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: Primary
    CWE-125
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application php php ≤ 5.6.30 Yes
Application php php 7.0.0 Yes
Application php php 7.0.1 Yes
Application php php 7.0.2 Yes
Application php php 7.0.3 Yes
Application php php 7.0.4 Yes
Application php php 7.0.5 Yes
Application php php 7.0.6 Yes
Application php php 7.0.7 Yes
Application php php 7.0.8 Yes
Application php php 7.0.9 Yes
Application php php 7.0.10 Yes
Application php php 7.0.11 Yes
Application php php 7.0.12 Yes
Application php php 7.0.13 Yes
Application php php 7.0.14 Yes
Application php php 7.0.15 Yes
Application php php 7.0.16 Yes
Application php php 7.0.17 Yes
Application php php 7.0.18 Yes
Application php php 7.0.19 Yes
Application php php 7.0.20 Yes
Application php php 7.1.0 Yes
Application php php 7.1.1 Yes
Application php php 7.1.2 Yes
Application php php 7.1.3 Yes
Application php php 7.1.4 Yes
Application php php 7.1.5 Yes
Application php php 7.1.6 Yes
References