CVE-2010-1866: opensuse Integer Overflow or Wraparound

Vulnerability summary

CVE-2010-1866 is a critical (CVSS 9.8) Integer Overflow or Wraparound vulnerability in opensuse. EPSS estimates a 6.72% chance of exploitation in the next 30 days, higher than 93.9% of scored vulnerabilities. 2 public exploits are recorded.

Timeline

1. 07-05-2010
   PublishedVulnerability first disclosed.
2. 07-08-2024
   Last modifiedVulnerability information updated.

Description

The dechunk filter in PHP 5.3 through 5.3.2, when decoding an HTTP chunked encoding stream, allows context-dependent attackers to cause a denial of service (crash) and possibly trigger memory corruption via a negative chunk size, which bypasses a signed comparison, related to an integer overflow in the chunk size decoder.

• 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.