CVE-2022-0566

Mozilla Thunderbird and 1 other: Out-of-bounds Write

CVE-2022-0566 is fixed in 7 products on 2 platforms, first by Mozilla Thunderbird (en-US) 91.6.1, released February 15, 2022. It is not reported as exploited. Patch Radar priority: High.

HighFixed on 2 platforms
CVSS
9.8
Important
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0074
54th percentile

It may be possible for an attacker to craft an email message that causes Thunderbird to perform an out-of-bounds write of one byte when processing the message. This vulnerability affects Thunderbird < 91.6.1.

Where it's fixed

ProductFixed inFixReleased
Windows apps
Mozilla Thunderbird (en-US) 91.6.1 Mozilla Thunderbird (en-US) 91.6.1 Feb 15, 2022
Linux
thunderbird · Debian 11.6 (bullseye) 1:91.6.1-1~deb11u1 DSA-5086-1 Feb 23, 2022
thunderbird · Debian 12.15 (bookworm) 1:91.6.1-1 DEBIAN-CVE-2022-0566 Dec 22, 2022
thunderbird · Debian 13.5 (trixie) 1:91.6.1-1 DEBIAN-CVE-2022-0566 Dec 22, 2022
thunderbird · Debian 14 1:91.6.1-1 DEBIAN-CVE-2022-0566 Dec 22, 2022
thunderbird · RHEL 8 0:91.7.0-2.el8_5 RHSA-2022:0845 Mar 14, 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 91.7.0-2.el8_5.alma ALSA-2022:0845 Mar 14, 2022
thunderbird · ol 8 0:91.7.0-2.0.1.el8_5 ELSA-2022-0845 Mar 14, 2022
thunderbird · rocky 8 0:91.7.0-2.el8_5 RLSA-2022:0845 Mar 14, 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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