CVE-2016-5096: php Integer Overflow or Wraparound

Vulnerability summary

CVE-2016-5096 is a high (CVSS 8.6) Integer Overflow or Wraparound vulnerability in php. EPSS estimates a 4.28% chance of exploitation in the next 30 days, higher than 91.1% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 07-08-2016
   PublishedVulnerability first disclosed.
2. 06-08-2024
   Last modifiedVulnerability information updated.

Description

Integer overflow in the fread function in ext/standard/file.c in PHP before 5.5.36 and 5.6.x before 5.6.22 allows remote attackers to cause a denial of service or possibly have unspecified other impact via a large integer in the second argument.

• 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.