CVE-2016-7479

Advisory lineage Upstream: 0 Downstream: 7
Modified
Published: 12 Jan 2017, 00:00
Last modified:06 Aug 2024, 01:57

Vulnerability Summary

Overall Risk (default)
high
70/100
CVSS Score
9.8 CRITICAL
v3.0 (nvd)
EPSS Score
21.63% HIGH
22% probability +1.46%
KEV
Not listed
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

12 Jan 2017, 00:00
Published
Vulnerability first disclosed
06 Aug 2024, 01:57
Last Modified
Vulnerability information updated

Description

In all versions of PHP 7, during the unserialization process, resizing the 'properties' hash table of a serialized object may lead to use-after-free. A remote attacker may exploit this bug to gain arbitrary code execution.

CVSS Metrics

  • v3.0•CRITICAL•Score: 9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • v2.0•HIGH•Score: 7.5AV:N/AC:L/Au:N/C:P/I:P/A:P

EPSS Trends

Current EPSS score: 21.63%• Percentile: 96%

Techniques & Countermeasures

  • CWE-416•Use After Free

    The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Affected Systems

  • Unknown•PHP

    7.0.0 | 7.0.1 | 7.0.2 | 7.0.3 | 7.0.4 | 7.0.5 | 7.0.6 | 7.0.7 | 7.0.8 | 7.0.9 | 7.0.10 | 7.0.11 | 7.0.12 | 7.0.14 | 7.1.0

References (8)