CVE-2021-4008
HIGH7.8EPSS 0.07%xorg-server - security update
Published: 12/17/2021Modified: 4/28/2026
Description
A flaw was found in xorg-x11-server in versions before 21.1.2 and before 1.20.14. An out-of-bounds access can occur in the SProcRenderCompositeGlyphs function. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Affected packages (4)
- Debian/xorg-serverfrom 0, < 2:1.20.11-1+deb11u1
- Debian/xorg-serverfrom 0, < 2:1.19.2-1+deb9u9
- Debian/xorg-serverfrom 0, < 2:1.20.4-1+deb10u4
- Debian/xwaylandfrom 0, < 2:21.1.4-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |