CVE-2021-29967
First published: Tue Jun 01 2021(Updated: )
Mozilla developers Christian Holler, Anny Gakhokidze, Alexandru Michis, Gabriele Svelto reported memory safety bugs present in Firefox 88 and Firefox ESR 78.11. 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 |
|---|---|---|
| Mozilla Firefox ESR | <78.11 | 78.11 |
| <89 | 89 | |
| <78.11 | 78.11 | |
| <78.11 | 78.11 | |
| Mozilla Firefox | <89.0 | |
| Mozilla Firefox ESR | <78.11 | |
| Mozilla Thunderbird | <78.11 |
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Reference Links
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1602862%2C1703191%2C1703760%2C1704722%2C1706041
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-24/
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-23/
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-26/
- https://security.gentoo.org/glsa/202208-14
- https://www.mozilla.org/security/advisories/mfsa2021-23/
- https://www.mozilla.org/security/advisories/mfsa2021-24/
- https://www.mozilla.org/security/advisories/mfsa2021-26/
Peer vulnerabilities
(Found alongside the following vulnerabilities)
Frequently Asked Questions
What is the severity of CVE-2021-29967?
The severity of CVE-2021-29967 is high with a severity value of 7.
Which software versions are affected by CVE-2021-29967?
Firefox 88, Firefox ESR 78.11, and Thunderbird 78.11 are affected by CVE-2021-29967.
What is the risk associated with CVE-2021-29967?
CVE-2021-29967 poses a risk of memory corruption and potential exploitation.
How can I fix the vulnerability CVE-2021-29967?
To fix CVE-2021-29967, update Firefox to version 89 or higher, or Firefox ESR to version 78.11 or higher.
Where can I find more information about CVE-2021-29967?
You can find more information about CVE-2021-29967 in the Mozilla Security Advisories: MFS…
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