CVE-2022-31747: Use After Free
First published: Tue May 31 2022(Updated: )
Mozilla developers Andrew McCreight, Nicolas B. Pierron, and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 100 and Firefox ESR 91.9. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code.
Credit: security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Thunderbird | <91.10 | 91.10 |
| Firefox | <101 | |
| Firefox ESR | <91.10 | |
| Thunderbird | <91.10 | |
| Firefox | <101 | 101 |
| Firefox ESR | <91.10 | 91.10 |
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Reference Links
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1760765%2C1765610%2C1766283%2C1767365%2C1768559%2C1768734
- https://www.mozilla.org/en-US/security/advisories/mfsa2022-20/
- https://www.mozilla.org/en-US/security/advisories/mfsa2022-21/
- https://www.mozilla.org/en-US/security/advisories/mfsa2022-22/
- https://www.mozilla.org/security/advisories/mfsa2022-20/
- https://www.mozilla.org/security/advisories/mfsa2022-21/
- https://www.mozilla.org/security/advisories/mfsa2022-22/
Peer vulnerabilities
(Found alongside the following vulnerabilities)
Frequently Asked Questions
What is the severity of CVE-2022-31747?
CVE-2022-31747 has been classified with a high severity due to potential memory corruption exploitation.
How do I fix CVE-2022-31747?
To fix CVE-2022-31747, update your Firefox or Firefox ESR to version 101 or 91.10 respectively.
Which versions of software are affected by CVE-2022-31747?
CVE-2022-31747 affects Mozilla Firefox versions prior to 101 and Firefox ESR versions prior to 91.10.
What type of vulnerability is CVE-2022-31747?
CVE-2022-31747 is a memory safety vulnerability present in Firefox and related products.
Can CVE-2022-31747 be exploited?
Yes, CVE-2022-31747 may potentially be exploited to run arbitrary code with sufficient effort.
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