CVE-2015-1242: Canonical Ubuntu Linux

High severity, CVSS 7.5. EPSS: 3% chance of exploitation in the next 30 days.

The ReduceTransitionElementsKind function in hydrogen-check-elimination.cc in Google V8 before 4.2.77.8, as used in Google Chrome before 42.0.2311.90, allows remote attackers to cause a denial of service or possibly have unspecified other impact via crafted JavaScript code that leverages "type confusion" in the check-elimination optimization.

Affected products

• Canonical Ubuntu Linux: version 14.04 only; version 14.10 only; version 15.04 only
• Debian Debian Linux: version 8.0 only
• Google Chrome: up to and including 42.0.2311.60
• Google v8: up to and including 4.2.77.7

Published 2015-04-19. Last modified 2026-06-17.