CVE-2020-12389: Input Validation
First published: Tue May 05 2020(Updated: )
The Firefox content processes did not sufficiently lockdown access control which could result in a sandbox escape.Note: this issue only affects Firefox on Windows operating systems.
Credit: security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mozilla Firefox ESR | <68.8 | 68.8 |
| <76 | 76 | |
| <68.8 | 68.8 | |
| Mozilla Firefox | <76.0 | |
| Mozilla Firefox ESR | <68.8.0 | |
| Microsoft Windows |
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Reference Links
- https://bugzilla.mozilla.org/show_bug.cgi?id=1554110
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-17/
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-16/
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-17/#CVE-2020-12387
- https://www.mozilla.org/security/advisories/mfsa2020-16/
- https://www.mozilla.org/security/advisories/mfsa2020-17/
Peer vulnerabilities
(Found alongside the following vulnerabilities)
Frequently Asked Questions
What is the severity of CVE-2020-12389?
CVE-2020-12389 is classified as a medium severity vulnerability.
How do I fix CVE-2020-12389?
To fix CVE-2020-12389, update Firefox or Firefox ESR to versions 76 or 68.8 respectively.
Which versions of Firefox are affected by CVE-2020-12389?
CVE-2020-12389 affects Firefox versions up to 76 and Firefox ESR versions up to 68.8.
Does CVE-2020-12389 affect Windows only?
Yes, CVE-2020-12389 specifically affects the Firefox content processes on Windows operating systems.
What is a sandbox escape in the context of CVE-2020-12389?
In the context of CVE-2020-12389, a sandbox escape refers to the ability to break out of the restricted environment designed to protect the system.
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