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.
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published: 2021-01-07T13:53:39

Updated: 2024-08-04T16:03:23.182Z

Reserved: 2020-10-12T00:00:00

Link: CVE-2020-26972

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2021-01-07T14:15:11.813

Modified: 2021-01-11T19:39:30.623

Link: CVE-2020-26972

cve-icon Redhat

No data.