CVE-2020-26972: Use After Free
First published: Tue Dec 15 2020(Updated: )
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.
Credit: security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mozilla Firefox | <84 | 84 |
| <84 | 84 | |
| Mozilla Firefox | <84.0 |
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Reference Links
Peer vulnerabilities
(Found alongside the following vulnerabilities)
- agent/type
- agent/first-publish-date
- agent/softwarecombine
- agent/references
- agent/author
- agent/severity
- collector/mozilla-advisory
- agent/software-canonical-lookup-request
- source/Mozilla
- agent/software-canonical-lookup
- agent/weakness
- agent/description
- collector/nvd-index
- collector/mitre-cve
- source/MITRE
- agent/tags
- agent/last-modified-date
- agent/event
- agent/trending
- vendor/mozilla
- canonical/mozilla firefox