CVE-2021-23981
First published: Tue Mar 23 2021(Updated: )
A texture upload of a Pixel Buffer Object could have confused the WebGL code to skip binding the buffer used to unpack it, resulting in memory corruption and a potentially exploitable information leak or crash.
Credit: security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Thunderbird | <78.9 | 78.9 |
| Firefox | <87.0 | |
| Firefox ESR | <78.9 | |
| Thunderbird | <78.9 | |
| Firefox | <87 | 87 |
| Firefox ESR | <78.9 | 78.9 |
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Reference Links
- https://bugzilla.mozilla.org/show_bug.cgi?id=1692832
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-12/
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-10/
- https://www.mozilla.org/en-US/security/advisories/mfsa2021-11/
- https://www.mozilla.org/security/advisories/mfsa2021-10/
- https://www.mozilla.org/security/advisories/mfsa2021-11/
- https://www.mozilla.org/security/advisories/mfsa2021-12/
Peer vulnerabilities
(Found alongside the following vulnerabilities)
Frequently Asked Questions
What is the severity of CVE-2021-23981?
CVE-2021-23981 has a medium severity rating due to the potential for memory corruption and information leakage.
How do I fix CVE-2021-23981?
To address CVE-2021-23981, update your Mozilla Firefox or Thunderbird to version 78.9 or later.
What software is affected by CVE-2021-23981?
CVE-2021-23981 affects Mozilla Firefox versions prior to 87, Firefox ESR versions prior to 78.9, and Thunderbird versions prior to 78.9.
What are the risks associated with CVE-2021-23981?
Risks associated with CVE-2021-23981 include possible crashes and information leaks that could be exploited.
Is there a workaround for CVE-2021-23981?
There is no known workaround for CVE-2021-23981, so applying the appropriate update is the best course of action.
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