Vulnerability Monitor

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CVE-2017-12932

ext/standard/var_unserializer.re in PHP 7.0.x through 7.0.22 and 7.1.x through 7.1.8 is prone to a heap use after free while unserializing untrusted data, related to improper use of the hash API for key deletion in a situation with an invalid array size. Exploitation of this issue can have an unspecified impact on the integrity of PHP.

Published

2017-08-18T03:29:00.183

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-416
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
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 7.0.21 Yes
Application php php 7.0.22 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
Application php php 7.1.7 Yes
Application php php 7.1.8 Yes
References