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CVE-2020-15673 Mozilla developers reported memory safety bugs present in Firefox 80 and Firefox ESR 78.2

Description

Mozilla developers reported memory safety bugs present in Firefox 80 and Firefox ESR 78.2. 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 < 81, Thunderbird < 78.3, and Firefox ESR < 78.3.

Affected products and versions

Product Affected versions Fixed in
Firefox 81 earliest → < 81 81
Thunderbird 78.3 earliest → < 78.3 78.3
Firefox ESR 78.3 earliest → < 78.3 78.3
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