Mozilla developers Andrew McCreight, Nicolas B. Pierron, and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 100 and Firefox ESR 91.9. 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 Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10.
The product reads data past the end, or before the beginning, of the intended buffer.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
| Link | Tags |
|---|---|
| https://www.mozilla.org/security/advisories/mfsa2022-20/ | vendor advisory |
| https://www.mozilla.org/security/advisories/mfsa2022-22/ | vendor advisory |
| https://www.mozilla.org/security/advisories/mfsa2022-21/ | vendor advisory |
| https://bugzilla.mozilla.org/buglist.cgi?bug_id=1760765%2C1765610%2C1766283%2C1767365%2C1768559%2C1768734 | issue tracking vendor advisory |