7 High
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
0.0004 Low
EPSS
Percentile
16.1%
A use-after-free flaw was found in xorg-x11-server-Xvfb. This issue occurs in Xvfb with a very specific and legacy configuration (a multi-screen setup with multiple protocol screens, also known as Zaphod mode). If the pointer is warped from a screen 1 to a screen 0, a use-after-free issue may be triggered during shutdown or reset of the Xvfb server, allowing for possible escalation of privileges or denial of service.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 12 | all | xorg-server | <= 2:21.1.7-3+deb12u5 | xorg-server_2:21.1.7-3+deb12u5_all.deb |
Debian | 11 | all | xorg-server | <= 2:1.20.11-1+deb11u11 | xorg-server_2:1.20.11-1+deb11u11_all.deb |
Debian | 10 | all | xorg-server | <= 2:1.20.4-1+deb10u4 | xorg-server_2:1.20.4-1+deb10u4_all.deb |
Debian | 999 | all | xorg-server | <= 2:21.1.12-1 | xorg-server_2:21.1.12-1_all.deb |
Debian | 13 | all | xorg-server | <= 2:21.1.12-1 | xorg-server_2:21.1.12-1_all.deb |