CVE-2020-15684: Use After Free
Mozilla developers Christian Holler, Sebastian Hengst, Bogdan Tara, and Tyson Smith reported memory safety bugs present in Firefox 81. 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 reported memory safety bugs present in Firefox 81. 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 < 82.
Affected Software
Event History
Peer vulnerabilities
Found alongside the following vulnerabilities.
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2020-15684.
Who reported the memory safety bugs in Firefox 81?
Mozilla developers Christian Holler, Sebastian Hengst, Bogdan Tara, and Tyson Smith reported the memory safety bugs.
What is the severity rating of CVE-2020-15684?
CVE-2020-15684 has a severity rating of high (7).
How can CVE-2020-15684 be exploited?
With enough effort, CVE-2020-15684 could have been exploited to run arbitrary code.
How can I fix CVE-2020-15684?
To fix CVE-2020-15684, update your Firefox browser to version 82 or higher.