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 |
|---|---|---|
| Firefox | <84 | 84 |
| Firefox | <84.0 |
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Reference Links
Peer vulnerabilities
(Found alongside the following vulnerabilities)
Frequently Asked Questions
What is the severity of CVE-2020-26972?
CVE-2020-26972 is rated as a high severity vulnerability due to its potential to cause crashes and exploitation.
How do I fix CVE-2020-26972?
To fix CVE-2020-26972, users should update Mozilla Firefox to version 84 or later.
Which versions of Firefox are affected by CVE-2020-26972?
CVE-2020-26972 affects Mozilla Firefox versions prior to 84.
What type of vulnerability is CVE-2020-26972?
CVE-2020-26972 is classified as a use-after-free vulnerability.
Can CVE-2020-26972 be exploited remotely?
Yes, CVE-2020-26972 could potentially be exploited remotely through specially crafted content.
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