CVE-2016-5735: pngquant Integer Overflow or Wraparound

Vulnerability summary

CVE-2016-5735 is a high (CVSS 7.8) Integer Overflow or Wraparound vulnerability in pngquant. EPSS estimates a 1.80% chance of exploitation in the next 30 days, higher than 78.4% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 23-05-2017
   PublishedVulnerability first disclosed.
2. 06-08-2024
   Last modifiedVulnerability information updated.

Description

Integer overflow in the rwpng_read_image24_libpng function in rwpng.c in pngquant 2.7.0 allows remote attackers to have unspecified impact via a crafted PNG file, which triggers a buffer overflow.

• 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.