CVE-2023-6204
thunderbird - security update
6.5
MEDIUM
CVSS 3.1
EPSS 0.34%
Description
On some systems—depending on the graphics settings and drivers—it was possible to force an out-of-bounds read and leak memory data into the images created on the canvas element. This vulnerability affects Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5.
How to fix CVE-2023-6204
To remediate CVE-2023-6204, upgrade the affected package to a fixed version below.
- —upgrade to 115.5.0esr-1~deb11u1 or later
- —upgrade to 115.5.0esr-1~deb10u1 or later
- —upgrade to 115.5.0esr-1~deb11u1 or later
- —upgrade to 1:115.5.0-1~deb11u1 or later
- —upgrade to 1:115.5.0-1~deb10u1 or later
- —upgrade to 1:115.5.0-1~deb11u1 or later
Is CVE-2023-6204 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (6)
- from 0, < 115.5.0esr-1~deb11u1
- from 0, < 115.5.0esr-1~deb10u1
- from 0, < 115.5.0esr-1~deb11u1
- from 0, < 1:115.5.0-1~deb11u1
- from 0, < 1:115.5.0-1~deb10u1
- from 0, < 1:115.5.0-1~deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |