CVE-2023-0430

Mozilla Thunderbird and 1 other: Improper Certificate Validation

CVE-2023-0430 is fixed in 2 products on 2 platforms, first by RHSA-2023:0606, released February 6, 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

Certificate OCSP revocation status was not checked when verifying S/Mime signatures. Mail signed with a revoked certificate would be displayed as having a valid signature. Thunderbird versions from 68 to 102.7.0 were affected by this bug. This vulnerability affects Thunderbird < 102.7.1.

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 12.15 (bookworm) 1:102.7.1+1-1 DEBIAN-CVE-2023-0430 Jun 2, 2023
thunderbird · Debian 13.5 (trixie) 1:102.7.1+1-1 DEBIAN-CVE-2023-0430 Jun 2, 2023
thunderbird · Debian 14 1:102.7.1+1-1 DEBIAN-CVE-2023-0430 Jun 2, 2023
thunderbird · RHEL 8 0:102.7.1-2.el8_7 RHSA-2023:0606 Feb 6, 2023
thunderbird · RHEL 9 0:102.7.1-2.el9_1 RHSA-2023:0608 Feb 6, 2023
thunderbird · almalinux 8 102.7.1-2.el8_7.alma ALSA-2023:0606 Feb 6, 2023
thunderbird · almalinux 9 102.7.1-2.el9_1.alma ALSA-2023:0608 Feb 6, 2023
thunderbird · ol 8 0:102.7.1-2.0.1.el8_7 ELSA-2023-0606 Feb 7, 2023
thunderbird · ol 9 0:102.7.1-2.0.1.el9_1 ELSA-2023-0608 Feb 7, 2023
thunderbird · rocky 8 0:102.7.1-2.el8_7 RLSA-2023:0606 Feb 6, 2023
thunderbird · rocky 9 0:102.7.1-2.el9_1 RLSA-2023:0608 Feb 6, 2023

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