CVE-2022-22763

Mozilla Firefox ESR and 3 others: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVE-2022-22763 is fixed in 10 products on 2 platforms, first by Mozilla Thunderbird (en-US) 91.6.0, released February 8, 2022. It is not reported as exploited. Patch Radar priority: High.

HighFixed on 2 platforms
CVSS
9.6
Important
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0060
48th percentile

When a worker is shutdown, it was possible to cause script to run late in the lifecycle, at a point after where it should not be possible. This vulnerability affects Firefox < 96, Thunderbird < 91.6, and Firefox ESR < 91.6.

Where it's fixed

ProductFixed inFixReleased
Windows apps
Mozilla Firefox ESR (en-US) 102.0 Mozilla Firefox ESR (en-US) 102.0 Jun 23, 2022
Mozilla Thunderbird (en-US) 91.6.0 Mozilla Thunderbird (en-US) 91.6.0 Feb 8, 2022
Linux
firefox · RHEL 8 0:91.6.0-1.el8_5 RHSA-2022:0510 Feb 14, 2022
firefox · almalinux 8 91.6.0-1.el8_5.alma ALSA-2022:0510 Feb 14, 2022
firefox · ol 8 0:91.6.0-1.0.1.el8_5 ELSA-2022-0510 Feb 14, 2022
firefox · rocky 8 0:91.6.0-1.el8_5 RLSA-2022:0510 Feb 14, 2022
firefox-esr · Debian 12.15 (bookworm) 91.6.0esr-1 DEBIAN-CVE-2022-22763 Dec 22, 2022
firefox-esr · Debian 13.5 (trixie) 91.6.0esr-1 DEBIAN-CVE-2022-22763 Dec 22, 2022
firefox-esr · Debian 14 91.6.0esr-1 DEBIAN-CVE-2022-22763 Dec 22, 2022
thunderbird · Debian 12.15 (bookworm) 1:91.6.0-1 DEBIAN-CVE-2022-22763 Dec 22, 2022
thunderbird · Debian 13.5 (trixie) 1:91.6.0-1 DEBIAN-CVE-2022-22763 Dec 22, 2022
thunderbird · Debian 14 1:91.6.0-1 DEBIAN-CVE-2022-22763 Dec 22, 2022
thunderbird · RHEL 8 0:91.6.0-1.el8_5 RHSA-2022:0535 Feb 15, 2022
thunderbird · Ubuntu 18.04.6 LTS (bionic) 1:91.7.0+build2-0ubuntu0.18.04.1 thunderbird 1:91.7.0+build2-0ubuntu0.18.04.1 Mar 8, 2022
thunderbird · Ubuntu 20.04 LTS (focal) 1:91.7.0+build2-0ubuntu0.20.04.1 thunderbird 1:91.7.0+build2-0ubuntu0.20.04.1 Mar 8, 2022
thunderbird · Ubuntu 22.04.1 LTS (jammy) 1:91.6.1+build1-0ubuntu1 thunderbird 1:91.6.1+build1-0ubuntu1 Feb 17, 2022
thunderbird · almalinux 8 91.6.0-1.el8_5.alma ALSA-2022:0535 Feb 15, 2022
thunderbird · ol 8 0:91.6.0-1.0.1.el8_5 ELSA-2022-0535 Feb 15, 2022
thunderbird · rocky 8 0:91.6.0-1.el8_5 RLSA-2022:0535 Feb 15, 2022
thunderbird-gnome-support · Ubuntu 18.04.6 LTS (bionic) 1:91.7.0+build2-0ubuntu0.18.04.1 thunderbird-gnome-support 1:91.7.0+build2-0ubuntu0.18.04.1 Mar 8, 2022
thunderbird-gnome-support · Ubuntu 20.04 LTS (focal) 1:91.7.0+build2-0ubuntu0.20.04.1 thunderbird-gnome-support 1:91.7.0+build2-0ubuntu0.20.04.1 Mar 8, 2022
thunderbird-gnome-support · Ubuntu 22.04.1 LTS (jammy) 1:91.6.1+build1-0ubuntu1 thunderbird-gnome-support 1:91.6.1+build1-0ubuntu1 Feb 17, 2022
thunderbird-mozsymbols · Ubuntu 18.04.6 LTS (bionic) 1:91.7.0+build2-0ubuntu0.18.04.1 thunderbird-mozsymbols 1:91.7.0+build2-0ubuntu0.18.04.1 Mar 8, 2022
thunderbird-mozsymbols · Ubuntu 20.04 LTS (focal) 1:91.7.0+build2-0ubuntu0.20.04.1 thunderbird-mozsymbols 1:91.7.0+build2-0ubuntu0.20.04.1 Mar 8, 2022
thunderbird-mozsymbols · Ubuntu 22.04.1 LTS (jammy) 1:91.6.1+build1-0ubuntu1 thunderbird-mozsymbols 1:91.6.1+build1-0ubuntu1 Feb 17, 2022
xul-ext-calendar-timezones · Ubuntu 18.04.6 LTS (bionic) 1:91.7.0+build2-0ubuntu0.18.04.1 xul-ext-calendar-timezones 1:91.7.0+build2-0ubuntu0.18.04.1 Mar 8, 2022
xul-ext-calendar-timezones · Ubuntu 20.04 LTS (focal) 1:91.7.0+build2-0ubuntu0.20.04.1 xul-ext-calendar-timezones 1:91.7.0+build2-0ubuntu0.20.04.1 Mar 8, 2022
xul-ext-calendar-timezones · Ubuntu 22.04.1 LTS (jammy) 1:91.6.1+build1-0ubuntu1 xul-ext-calendar-timezones 1:91.6.1+build1-0ubuntu1 Feb 17, 2022
xul-ext-gdata-provider · Ubuntu 18.04.6 LTS (bionic) 1:91.7.0+build2-0ubuntu0.18.04.1 xul-ext-gdata-provider 1:91.7.0+build2-0ubuntu0.18.04.1 Mar 8, 2022
xul-ext-gdata-provider · Ubuntu 20.04 LTS (focal) 1:91.7.0+build2-0ubuntu0.20.04.1 xul-ext-gdata-provider 1:91.7.0+build2-0ubuntu0.20.04.1 Mar 8, 2022
xul-ext-gdata-provider · Ubuntu 22.04.1 LTS (jammy) 1:91.6.1+build1-0ubuntu1 xul-ext-gdata-provider 1:91.6.1+build1-0ubuntu1 Feb 17, 2022
xul-ext-lightning · Ubuntu 18.04.6 LTS (bionic) 1:91.7.0+build2-0ubuntu0.18.04.1 xul-ext-lightning 1:91.7.0+build2-0ubuntu0.18.04.1 Mar 8, 2022
xul-ext-lightning · Ubuntu 20.04 LTS (focal) 1:91.7.0+build2-0ubuntu0.20.04.1 xul-ext-lightning 1:91.7.0+build2-0ubuntu0.20.04.1 Mar 8, 2022
xul-ext-lightning · Ubuntu 22.04.1 LTS (jammy) 1:91.6.1+build1-0ubuntu1 xul-ext-lightning 1:91.6.1+build1-0ubuntu1 Feb 17, 2022

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