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CVE-2020-26972 The lifecycle of IPC Actors allows managed actors to outlive their manager actors; and the former must ensure that…

Description

The lifecycle of IPC Actors allows managed actors to outlive their manager actors; and the former must ensure that they are not attempting to use a dead actor they have a reference to. Such a check was omitted in WebGL, resulting in a use-after-free and a potentially exploitable crash. This vulnerability affects Firefox < 84.

Affected products and versions

Product Affected versions Fixed in
Firefox 84 earliest → < 84 84
The 2221 CVEs of Firefox →
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