CVE-2023-0547

Mozilla Thunderbird and 1 other: Improper Certificate Validation

CVE-2023-0547 is fixed in 7 products on 2 platforms, first by thunderbird 1:102.10.0+build2-0ubuntu0.18.04.1, released April 11, 2023. It is not reported as exploited. Patch Radar priority: High.

HighFixed on 2 platforms
CVSS
7.5
Important
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0037
31st percentile

OCSP revocation status of recipient certificates was not checked when sending S/Mime encrypted email, and revoked certificates would be accepted. Thunderbird versions from 68 to 102.9.1 were affected by this bug. This vulnerability affects Thunderbird < 102.10.

Where it's fixed

ProductFixed inFixReleased
Windows apps
Mozilla Thunderbird (en-US) 115.8.0 Mozilla Thunderbird (en-US) 115.8.0 Feb 21, 2024
Linux
thunderbird · Debian 11.6 (bullseye) 1:102.10.0-1~deb11u1 DSA-5392-1 Apr 22, 2023
thunderbird · Debian 12.15 (bookworm) 1:102.10.0-1 DEBIAN-CVE-2023-0547 Jun 2, 2023
thunderbird · Debian 13.5 (trixie) 1:102.10.0-1 DEBIAN-CVE-2023-0547 Jun 2, 2023
thunderbird · Debian 14 1:102.10.0-1 DEBIAN-CVE-2023-0547 Jun 2, 2023
thunderbird · RHEL 8 0:102.10.0-2.el8_7 RHSA-2023:1802 Apr 17, 2023
thunderbird · RHEL 9 0:102.10.0-2.el9_1 RHSA-2023:1809 Apr 17, 2023
thunderbird · Ubuntu 18.04.6 LTS (bionic) 1:102.10.0+build2-0ubuntu0.18.04.1 thunderbird 1:102.10.0+build2-0ubuntu0.18.04.1 Apr 11, 2023
thunderbird · Ubuntu 20.04 LTS (focal) 1:102.10.0+build2-0ubuntu0.20.04.1 thunderbird 1:102.10.0+build2-0ubuntu0.20.04.1 Apr 11, 2023
thunderbird · Ubuntu 22.04.1 LTS (jammy) 1:102.10.0+build2-0ubuntu0.22.04.1 thunderbird 1:102.10.0+build2-0ubuntu0.22.04.1 Apr 11, 2023
thunderbird · almalinux 8 102.10.0-2.el8_7.alma ALSA-2023:1802 Apr 17, 2023
thunderbird · almalinux 9 102.10.0-2.el9_1.alma ALSA-2023:1809 Apr 17, 2023
thunderbird · ol 8 0:102.10.0-2.0.1.el8_7 ELSA-2023-1802 Apr 18, 2023
thunderbird · ol 9 0:102.10.0-2.0.1.el9_1 ELSA-2023-1809 Apr 18, 2023
thunderbird · rocky 8 0:102.10.0-2.el8_7 RLSA-2023:1802 Apr 26, 2023
thunderbird · rocky 9 0:102.10.0-2.el9_1 RLSA-2023:1809 Apr 26, 2023
thunderbird-gnome-support · Ubuntu 18.04.6 LTS (bionic) 1:102.10.0+build2-0ubuntu0.18.04.1 thunderbird-gnome-support 1:102.10.0+build2-0ubuntu0.18.04.1 Apr 11, 2023
thunderbird-gnome-support · Ubuntu 20.04 LTS (focal) 1:102.10.0+build2-0ubuntu0.20.04.1 thunderbird-gnome-support 1:102.10.0+build2-0ubuntu0.20.04.1 Apr 11, 2023
thunderbird-gnome-support · Ubuntu 22.04.1 LTS (jammy) 1:102.10.0+build2-0ubuntu0.22.04.1 thunderbird-gnome-support 1:102.10.0+build2-0ubuntu0.22.04.1 Apr 11, 2023
thunderbird-mozsymbols · Ubuntu 18.04.6 LTS (bionic) 1:102.10.0+build2-0ubuntu0.18.04.1 thunderbird-mozsymbols 1:102.10.0+build2-0ubuntu0.18.04.1 Apr 11, 2023
thunderbird-mozsymbols · Ubuntu 20.04 LTS (focal) 1:102.10.0+build2-0ubuntu0.20.04.1 thunderbird-mozsymbols 1:102.10.0+build2-0ubuntu0.20.04.1 Apr 11, 2023
thunderbird-mozsymbols · Ubuntu 22.04.1 LTS (jammy) 1:102.10.0+build2-0ubuntu0.22.04.1 thunderbird-mozsymbols 1:102.10.0+build2-0ubuntu0.22.04.1 Apr 11, 2023
xul-ext-calendar-timezones · Ubuntu 18.04.6 LTS (bionic) 1:102.10.0+build2-0ubuntu0.18.04.1 xul-ext-calendar-timezones 1:102.10.0+build2-0ubuntu0.18.04.1 Apr 11, 2023
xul-ext-calendar-timezones · Ubuntu 20.04 LTS (focal) 1:102.10.0+build2-0ubuntu0.20.04.1 xul-ext-calendar-timezones 1:102.10.0+build2-0ubuntu0.20.04.1 Apr 11, 2023
xul-ext-calendar-timezones · Ubuntu 22.04.1 LTS (jammy) 1:102.10.0+build2-0ubuntu0.22.04.1 xul-ext-calendar-timezones 1:102.10.0+build2-0ubuntu0.22.04.1 Apr 11, 2023
xul-ext-gdata-provider · Ubuntu 18.04.6 LTS (bionic) 1:102.10.0+build2-0ubuntu0.18.04.1 xul-ext-gdata-provider 1:102.10.0+build2-0ubuntu0.18.04.1 Apr 11, 2023
xul-ext-gdata-provider · Ubuntu 20.04 LTS (focal) 1:102.10.0+build2-0ubuntu0.20.04.1 xul-ext-gdata-provider 1:102.10.0+build2-0ubuntu0.20.04.1 Apr 11, 2023
xul-ext-gdata-provider · Ubuntu 22.04.1 LTS (jammy) 1:102.10.0+build2-0ubuntu0.22.04.1 xul-ext-gdata-provider 1:102.10.0+build2-0ubuntu0.22.04.1 Apr 11, 2023
xul-ext-lightning · Ubuntu 18.04.6 LTS (bionic) 1:102.10.0+build2-0ubuntu0.18.04.1 xul-ext-lightning 1:102.10.0+build2-0ubuntu0.18.04.1 Apr 11, 2023
xul-ext-lightning · Ubuntu 20.04 LTS (focal) 1:102.10.0+build2-0ubuntu0.20.04.1 xul-ext-lightning 1:102.10.0+build2-0ubuntu0.20.04.1 Apr 11, 2023
xul-ext-lightning · Ubuntu 22.04.1 LTS (jammy) 1:102.10.0+build2-0ubuntu0.22.04.1 xul-ext-lightning 1:102.10.0+build2-0ubuntu0.22.04.1 Apr 11, 2023

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