Mozilla developers reported memory safety bugs present in Firefox 83. 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 < 84.
The product writes data past the end, or before the beginning, of the intended buffer.
Link | Tags |
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https://www.mozilla.org/security/advisories/mfsa2020-54/ | vendor advisory |
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1607449%2C1640416%2C1656459%2C1669914%2C1673567 | issue tracking patch vendor advisory exploit |