CVE-2021-29972: Use After Free
First published: Tue Jul 13 2021(Updated: )
A use-after-free vulnerability was found via testing, and traced to an out-of-date Cairo library. Updating the library resolved the issue, and may have remediated other, unknown security vulnerabilities as well. This vulnerability affects Firefox < 90.
Credit: security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mozilla Firefox | <90 | 90 |
| <90 | 90 | |
| Mozilla Firefox | <90.0 |
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Reference Links
Peer vulnerabilities
(Found alongside the following vulnerabilities)
Frequently Asked Questions
What is CVE-2021-29972?
CVE-2021-29972 is a user-after-free vulnerability in an out-of-date Cairo library found in Mozilla Firefox.
How severe is CVE-2021-29972?
CVE-2021-29972 has a severity rating of medium.
How can I fix CVE-2021-29972?
To fix CVE-2021-29972, update your Mozilla Firefox browser to version 90 or higher.
Is there any additional information about CVE-2021-29972?
Yes, more information about CVE-2021-29972 can be found in the Mozilla security advisory: https://www.mozilla.org/en-US/security/advisories/mfsa2021-28/
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