Use After Free Affecting Firefox-ESR package, versions [,115.20)[120.0,128.7)
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Test your applications- Snyk IDSNYK-UNMANAGED-FIREFOXESR-8705435
- published9 Feb 2025
- disclosed4 Feb 2025
- creditNils Bars
Introduced: 4 Feb 2025
NewCVE-2025-1012 (opens in a new tab)Common Vulnerabilities and Exposures (CVE) are common identifiers for publicly known security vulnerabilities
Common Weakness Enumeration (CWE) is a category system for software weaknesses
How to fix?
Upgrade Firefox-ESR to version 115.20, 128.7 or higher.
Overview
Affected versions of this package are vulnerable to Use After Free due to a race condition during concurrent delazification. An attacker can execute arbitrary code or cause a denial of service by exploiting the timing discrepancy to access freed memory.