CVE-2020-15670: Race Condition
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.
Other sources
Mozilla developers Jason Kratzer, Christian Holler, and Byron Campen reported memory safety bugs present in Firefox for Android 79. 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.
— Mozilla
Mozilla developers Jason Kratzer, Christian Holler, Byron Campen, Tyson Smith reported memory safety bugs present in Thunderbird 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.
— Mozilla
Mozilla developers reported memory safety bugs present in Firefox for Android 79. 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. This vulnerability affects Firefox < 80, Firefox ESR < 78.2, Thunderbird < 78.2, and Firefox for Android < 80.
Affected Software
Event History
Parent advisories
This vulnerability 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.