CVE-2017-5428: mozilla firefox Integer Overflow or Wraparound

Vulnerability summary

CVE-2017-5428 is a critical (CVSS 9.8) Integer Overflow or Wraparound vulnerability in mozilla firefox. EPSS estimates a 3.18% chance of exploitation in the next 30 days, higher than 88% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 11-06-2018
   PublishedVulnerability first disclosed.
2. 05-08-2024
   Last modifiedVulnerability information updated.

Description

An integer overflow in "createImageBitmap()" was reported through the Pwn2Own contest. The fix for this vulnerability disables the experimental extensions to the "createImageBitmap" API. This function runs in the content sandbox, requiring a second vulnerability to compromise a user's computer. This vulnerability affects Firefox ESR < 52.0.1 and Firefox < 52.0.1.

• 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.