CVE-2020-15670: Race Condition
First published: Tue Aug 25 2020(Updated: )
Mozilla developers Jason Kratzer, Christian Holler, and Byron Campen reported memory safety bugs present in Firefox 79 and Firefox ESR 78.1. 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 | <78.2 | 78.2 |
| <80 | 80 | |
| <78.2 | 78.2 | |
| <78.2 | 78.2 | |
| All of | ||
| Mozilla Firefox | =80 | |
| Google Android | ||
| Mozilla Firefox | <80.0 | |
| Mozilla Firefox | <80.0 | |
| Mozilla Firefox ESR | <78.2 | |
| Mozilla Thunderbird | <78.2 |
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Reference Links
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1651001%2C1653626%2C1656957
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-38/
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-36/
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-39/
- https://bugzilla.mozilla.org/buglist.cgi?bug_id=1651001%2C1651449%2C1653626%2C1656957
- https://www.mozilla.org/en-US/security/advisories/mfsa2020-41/
- https://www.mozilla.org/security/advisories/mfsa2020-36/
- https://www.mozilla.org/security/advisories/mfsa2020-38/
- https://www.mozilla.org/security/advisories/mfsa2020-39/
- https://www.mozilla.org/security/advisories/mfsa2020-41/
Parent vulnerabilities
(Appears in the following advisories)
Peer vulnerabilities
(Found alongside the following vulnerabilities)
Frequently Asked Questions
What is CVE-2020-15670?
CVE-2020-15670 is a vulnerability in Firefox for Android 79 that allows for memory corruption and potential code execution.
How does CVE-2020-15670 affect Firefox and Thunderbird?
CVE-2020-15670 affects Firefox versions prior to 80 and Thunderbird version 78.2.
What is the severity of CVE-2020-15670?
CVE-2020-15670 has a severity rating of 8.8 (high).
How can CVE-2020-15670 be fixed?
To fix CVE-2020-15670, update Firefox to version 80 or higher, and Thunderbird to version 78.2 or higher.
Where can I find more information about CVE-2020-15670?
You can find more information about CVE-2020-15670 on the Mozilla bugzilla and security advisories pages.
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