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6.5 Medium

CVE-2022-40960 Concurrent use of the URL parser with non-UTF-8 data was not thread-safe

Description

Concurrent use of the URL parser with non-UTF-8 data was not thread-safe. This could lead to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox ESR < 102.3, Thunderbird < 102.3, and Firefox < 105.

Affected products and versions

Product Affected versions Fixed in
Firefox ESR 102.3 earliest → < 102.3 102.3
Thunderbird 102.3 earliest → < 102.3 102.3
Firefox 105 earliest → < 105 105
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