vulnerability
Ubuntu: (Multiple Advisories) (CVE-2021-4011): X.Org X Server vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:L/Au:N/C:C/I:C/A:C) | Dec 14, 2021 | Dec 15, 2021 | Aug 18, 2025 |
Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Published
Dec 14, 2021
Added
Dec 15, 2021
Modified
Aug 18, 2025
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 SwapCreateRegister function. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Solutions
ubuntu-pro-upgrade-xserver-xorg-coreubuntu-pro-upgrade-xserver-xorg-core-hwe-16-04ubuntu-pro-upgrade-xserver-xorg-core-hwe-18-04ubuntu-pro-upgrade-xwayland
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