Vulnerability · Published Dec 19, 2023 · Assigned by mozilla
CVE-2023-50762
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
When processing a PGP/MIME payload that contains digitally signed text, the first paragraph of the text was never shown to the user. This is because the text was interpreted as a MIME message and the first paragraph was always treated as an email header section. A digitally signed text from a different context, such as a signed GIT commit, could be used to spoof an email message. 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-2023-50762 |
| Debian:12 | thunderbird | 1:115.6.0-1~deb12u1 | DSA-5582-1 |
| Debian:13 | thunderbird | 1:115.6.0-1 | DEBIAN-CVE-2023-50762 |
| Debian:14 | thunderbird | 1:115.6.0-1 | DEBIAN-CVE-2023-50762 |
| 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-2023-50762 |
| 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 |