CVE-2020-12396
First published: Tue May 05 2020(Updated: )
Mozilla developers and community members Frederik Braun, Andrew McCreight, C.M.Chang, and Dan Minor reported memory safety bugs present in Firefox 75. 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 |
|---|---|---|
| ubuntu/firefox | <76.0+ | 76.0+ |
| ubuntu/firefox | <76.0+ | 76.0+ |
| ubuntu/firefox | <76.0+ | 76.0+ |
| ubuntu/firefox | <76.0+ | 76.0+ |
| ubuntu/firefox | <76.0+ | 76.0+ |
| ubuntu/firefox | <76.0+ | 76.0+ |
| ubuntu/firefox | <76.0+ | 76.0+ |
| ubuntu/firefox | <76.0+ | 76.0+ |
| ubuntu/firefox | <76.0+ | 76.0+ |
| ubuntu/firefox | <76.0+ | 76.0+ |
| ubuntu/firefox | <76.0+ | 76.0+ |
| ubuntu/firefox | <76.0 | 76.0 |
| ubuntu/firefox | <76.0+ | 76.0+ |
| debian/firefox | 130.0-2 | |
| Firefox | <76 | 76 |
| Firefox | <76.0 |
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Reference Links
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1339601%2C1611938%2C1620488%2C1622291%2C1627644
- https://www.mozilla.org/security/advisories/mfsa2020-16/
- https://security.gentoo.org/glsa/202005-04
- https://launchpad.net/bugs/cve/CVE-2020-12396
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-16/
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-16/#CVE-2020-6831
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-16/#CVE-2020-12396
- https://security-tracker.debian.org/tracker/CVE-2020-12396
- https://ubuntu.com/security/notices/USN-4353-1
- https://www.cve.org/CVERecord?id=CVE-2020-12396
- https://nvd.nist.gov/vuln/detail/CVE-2020-12396
- https://ubuntu.com/security/CVE-2020-12396
Peer vulnerabilities
(Found alongside the following vulnerabilities)
Frequently Asked Questions
What is the severity of CVE-2020-12396?
CVE-2020-12396 is classified as a high severity memory safety vulnerability in Firefox.
How do I fix CVE-2020-12396?
To fix CVE-2020-12396, update Firefox to version 76.0 or later.
Which versions of Firefox are affected by CVE-2020-12396?
CVE-2020-12396 affects Firefox versions prior to 76.0.
Can CVE-2020-12396 lead to remote code execution?
Yes, CVE-2020-12396 may allow attackers to exploit memory corruption leading to potential remote code execution.
Is there a workaround for CVE-2020-12396 if I can't upgrade Firefox?
There is no known workaround for CVE-2020-12396, so upgrading is the recommended action.
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