CVE-2021-20312: debian debian_linux Integer Overflow or Wraparound

Vulnerability summary

CVE-2021-20312 is a high (CVSS 7.8) Integer Overflow or Wraparound vulnerability in debian debian_linux. EPSS estimates a 2.38% chance of exploitation in the next 30 days, higher than 83.6% of scored vulnerabilities.

Timeline

1. 11-05-2021
   PublishedVulnerability first disclosed.
2. 03-08-2024
   Last modifiedVulnerability information updated.

Description

A flaw was found in ImageMagick in versions 7.0.11, where an integer overflow in WriteTHUMBNAILImage of coders/thumbnail.c may trigger undefined behavior via a crafted image file that is submitted by an attacker and processed by an application using ImageMagick. The highest threat from this vulnerability is to system availability.

• 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.