PT-2023-2800 · Mozilla+9 · Thunderbird+9
Paul Menzel
·
Published
2023-04-11
·
Updated
2025-01-10
·
CVE-2023-0547
CVSS v3.1
6.5
Medium
| Vector | AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N |
Name of the Vulnerable Software and Affected Versions
Thunderbird versions 68 through 102.9.1
Thunderbird versions prior to 102.10
Description
The issue is related to the implementation of the S/MIME protocol in the Thunderbird email client, specifically with errors in resource release. When sending S/MIME encrypted email, the OCSP revocation status of recipient certificates was not checked, and revoked certificates would be accepted. This could allow a remote attacker to bypass existing security restrictions and gain unauthorized access to protected information.
Recommendations
For Thunderbird versions 68 through 102.9.1, update to version 102.10 or later to resolve the issue.
For Thunderbird versions prior to 102.10, update to version 102.10 or later to resolve the issue.
As a temporary workaround, consider disabling S/MIME encryption until a patch is available.
Restrict access to sensitive information to minimize the risk of exploitation.
Fix
Improper Certificate Validation
RCE
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Related Identifiers
Affected Products
Alt Linux
Almalinux
Astra Linux
Centos
Linuxmint
Red Hat
Red Os
Rocky Linux
Thunderbird
Ubuntu