Description
Memory safety bugs present in Firefox 141 and Thunderbird 141. 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. This vulnerability affects Firefox < 142 and Thunderbird < 142.
Problem types
Memory safety bugs fixed in Firefox 142 and Thunderbird 142
Product status
Credits
Andy Leiserson, Maurice Dauer, Sebastian Hengst and the Mozilla Fuzzing Team
References
bugzilla.mozilla.org/...825621%2C1970079%2C1976736%2C1979072 (Memory safety bugs fixed in Firefox 142 and Thunderbird 142)
www.mozilla.org/security/advisories/mfsa2025-64/
www.mozilla.org/security/advisories/mfsa2025-70/
