Learn about CVE-2020-6805, a use-after-free vulnerability affecting Thunderbird, Firefox, and Firefox ESR versions, potentially leading to exploitable crashes. Find out how to mitigate this security risk.
A use-after-free vulnerability affecting Thunderbird, Firefox, and Firefox ESR versions, potentially leading to exploitable crashes.
Understanding CVE-2020-6805
What is CVE-2020-6805?
When removing data about an origin whose tab was recently closed, a use-after-free vulnerability could occur in the Quota manager, leading to potentially exploitable crashes in Thunderbird, Firefox, and Firefox ESR.
The Impact of CVE-2020-6805
This vulnerability could be exploited to cause a crash, potentially leading to arbitrary code execution.
Technical Details of CVE-2020-6805
Vulnerability Description
A use-after-free vulnerability in the Quota manager when removing data about closed tabs.
Affected Systems and Versions
Exploitation Mechanism
The vulnerability can be exploited by an attacker to trigger a use-after-free condition, potentially leading to a crash or arbitrary code execution.
Mitigation and Prevention
Immediate Steps to Take
Long-Term Security Practices
Patching and Updates
Ensure that all systems running Thunderbird, Firefox, and Firefox ESR are updated to the latest patched versions to mitigate the vulnerability.