CVE-2020-35523: debian debian_linux Integer Overflow or Wraparound

Vulnerability summary

CVE-2020-35523 is a high (CVSS 7.8) Integer Overflow or Wraparound vulnerability in debian debian_linux. EPSS estimates a 1.92% chance of exploitation in the next 30 days, higher than 79.6% of scored vulnerabilities.

Timeline

1. 09-03-2021
   PublishedVulnerability first disclosed.
2. 04-08-2024
   Last modifiedVulnerability information updated.

Description

An integer overflow flaw was found in libtiff that exists in the tif_getimage.c file. This flaw allows an attacker to inject and execute arbitrary code when a user opens a crafted TIFF file. The highest threat from this vulnerability is to confidentiality, integrity, as well as 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.