Vulnerability · Published Dec 19, 2023 · Assigned by mozilla
CVE-2023-50761
Medium 4.3
In plain English
A medium-severity security flaw in Thunderbird from Mozilla. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 51% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
The signature of a digitally signed S/MIME email message may optionally specify the signature creation date and time. If present, Thunderbird did not compare the signature creation date with the message date and time, and displayed a valid signature despite a date or time mismatch. This could be used to give recipients the impression that a message was sent at a different date or time. This vulnerability affects Thunderbird < 115.6.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | thunderbird | 115.6.0-1.el8_9.alma | ALSA-2024:0003 |
| AlmaLinux:9 | thunderbird | 115.6.0-1.el9_3.alma | ALSA-2024:0001 |
| Debian:12 | thunderbird | 1:115.6.0-1~deb12u1 | DEBIAN-CVE-2023-50761 |
| Debian:12 | thunderbird | 1:115.6.0-1~deb12u1 | DSA-5582-1 |
| Debian:13 | thunderbird | 1:115.6.0-1 | DEBIAN-CVE-2023-50761 |
| Debian:14 | thunderbird | 1:115.6.0-1 | DEBIAN-CVE-2023-50761 |
| Rocky Linux:8 | thunderbird | 0:115.6.0-1.el8_9 | RLSA-2024:0003 |
| Ubuntu:22.04:LTS | thunderbird | 1:115.6.0+build2-0ubuntu0.22.04.1 | UBUNTU-CVE-2023-50761 |
| Ubuntu:22.04:LTS | thunderbird | 1:115.6.0+build2-0ubuntu0.22.04.1 | USN-6563-1 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Thunderbird | unspecified – before 115.6 |