Vulnerability · Published Jun 2, 2023 · Assigned by mozilla
CVE-2023-0430
Medium 6.5
In plain English
A medium-severity improper certificate validation in Thunderbird from Mozilla. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 31% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)0.4%top 68.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | thunderbird | 102.7.1-2.el8_7.alma | ALSA-2023:0606 |
| AlmaLinux:9 | thunderbird | 102.7.1-2.el9_1.alma | ALSA-2023:0608 |
| Debian:12 | thunderbird | 1:102.7.1+1-1 | DEBIAN-CVE-2023-0430 |
| Debian:13 | thunderbird | 1:102.7.1+1-1 | DEBIAN-CVE-2023-0430 |
| Debian:14 | thunderbird | 1:102.7.1+1-1 | DEBIAN-CVE-2023-0430 |
| Rocky Linux:8 | thunderbird | 0:102.7.1-2.el8_7 | RLSA-2023:0606 |
| Rocky Linux:9 | thunderbird | 0:102.7.1-2.el9_1 | RLSA-2023:0608 |
| Ubuntu:22.04:LTS | thunderbird | 1:102.7.1+build2-0ubuntu0.22.04.1 | USN-5824-1 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Thunderbird | unspecified – before 102.7.1 |
Weakness: CWE-295 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N