Mozilla Foundation Security Advisory 2025-03
Security Vulnerabilities fixed in Firefox ESR 115.19
- Announced
- January 7, 2025
- Impact
- moderate
- Products
- Firefox ESR
- Fixed in
-
- Firefox ESR 115.19
#CVE-2025-0238: Use-after-free when breaking lines in text
- Reporter
- Irvan Kurniawan
- Impact
- moderate
Description
Assuming a controlled failed memory allocation, an attacker could have caused a use-after-free, leading to a potentially exploitable crash.
References
#CVE-2025-0242: Memory safety bugs fixed in Firefox 134, Thunderbird 134, Firefox ESR 115.19, Firefox ESR 128.6, Thunderbird 115.19, and Thunderbird 128.6
- Reporter
- Andrew McCreight, Tooru Fujisawa, and the Mozilla Fuzzing Team
- Impact
- high
Description
Memory safety bugs present in Firefox 133, Thunderbird 133, Firefox ESR 115.18, Firefox ESR 128.5, Thunderbird 115.18, and Thunderbird 128.5. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code.