CVE-2020-6820 log

Source	CVE Red Hat MITRE NVD Debian Ubuntu SUSE Alpine Mageia CVE Details CIRCL Bugs Arch Linux Red Hat Gentoo SUSE GitHub Lists oss-security full-disclosure bugtraq Misc GitHub code web search
Severity	Critical
Remote	Yes
Type	Arbitrary code execution
Description	A use-after-free vulnerability has been found in Firefox before 74.0.1 and Thunderbird before 68.7.0 where, under certain conditions, when handling a ReadableStream, a race condition can cause a use-after-free. Mozilla is aware of targeted attacks in the wild abusing this flaw.

Group	Package	Affected	Fixed	Severity	Status	Ticket
AVG-1132	thunderbird	68.6.0-2	68.7.0-1	Critical	Fixed
AVG-1125	firefox	74.0-2	74.0.1-1	Critical	Fixed

Date	Advisory	Group	Package	Severity	Type
04 Apr 2020	ASA-202004-6	AVG-1125	firefox	Critical	arbitrary code execution
13 Apr 2020	ASA-202004-12	AVG-1132	thunderbird	Critical	multiple issues

References
https://www.mozilla.org/en-US/security/advisories/mfsa2020-11/#CVE-2020-6820 https://bugzilla.mozilla.org/show_bug.cgi?id=1626728