CVE-2016-7133: php Integer Overflow or Wraparound

Vulnerability summary

CVE-2016-7133 is a high (CVSS 8.1) Integer Overflow or Wraparound vulnerability in php. EPSS estimates a 4.05% chance of exploitation in the next 30 days, higher than 90.6% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 12-09-2016
   PublishedVulnerability first disclosed.
2. 06-08-2024
   Last modifiedVulnerability information updated.

Description

Zend/zend_alloc.c in PHP 7.x before 7.0.10, when open_basedir is enabled, mishandles huge realloc operations, which allows remote attackers to cause a denial of service (integer overflow) or possibly have unspecified other impact via a long pathname.

• CWE-190Integer Overflow or WraparoundThe product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.