CVE-2018-6065: Google Chromium V8 Integer Overflow Vulnerability

Vulnerability summary

CVE-2018-6065 is a high (CVSS 8.8) Integer Overflow or Wraparound vulnerability in Google Chromium V8. It is known to be exploited: CISA lists it, first on 08-06-2022. EPSS estimates a 60.30% chance of exploitation in the next 30 days, higher than 99.1% of scored vulnerabilities. 2 public exploits are recorded.

Timeline

1. 14-11-2018
   PublishedVulnerability first disclosed.
2. 08-06-2022
   Added to CISA KEVGoogle Chromium V8 Integer Overflow Vulnerability
3. 22-06-2022
   CISA remediation dueApply updates per vendor instructions.
4. 21-10-2025
   Last modifiedVulnerability information updated.

Description

Integer overflow in computing the required allocation size when instantiating a new javascript object in V8 in Google Chrome prior to 65.0.3325.146 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

• 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.