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Ubuntu.comUB:CVE-2023-5380HistoryOct 25, 2023 - 12:00 a.m.
CVE-2023-5380
2023-10-2500:00:00
ubuntu.com
ubuntu.com
10
xorg-x11-server
use-after-free
x server crash
zaphod mode
multiple protocol screens
4.7 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
5.7 Medium
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
10.2%
A use-after-free flaw was found in the xorg-x11-server. An X server crash
may occur in 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 within a window on one screen to the root window of the
other screen and if the original window is destroyed followed by another
window being destroyed.
Notes
| Author | Note |
|---|---|
| mdeslaur | xorg server is actually the xorg-server package the xorg package only contains docs xwayland package contains parts of xorg-server xwayland is not affected as it does not support multiple protocol screens |
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| ubuntu | 18.04 | noarch | xorg-server | < 2:1.19.6-1ubuntu4.15+esm1 | UNKNOWN |
| ubuntu | 20.04 | noarch | xorg-server | < 2:1.20.13-1ubuntu1~20.04.9 | UNKNOWN |
| ubuntu | 22.04 | noarch | xorg-server | < 2:21.1.4-2ubuntu1.7~22.04.2 | UNKNOWN |
| ubuntu | 23.04 | noarch | xorg-server | < 2:21.1.7-1ubuntu3.1 | UNKNOWN |
| ubuntu | 23.10 | noarch | xorg-server | < 2:21.1.7-3ubuntu2.1 | UNKNOWN |
| ubuntu | 24.04 | noarch | xorg-server | < 2:21.1.7-3ubuntu2.1 | UNKNOWN |
| ubuntu | 14.04 | noarch | xorg-server | < 2:1.15.1-0ubuntu2.11+esm8 | UNKNOWN |
| ubuntu | 16.04 | noarch | xorg-server | < 2:1.18.4-0ubuntu0.12+esm6 | UNKNOWN |
| ubuntu | 16.04 | noarch | xorg-server-hwe-16.04 | < any | UNKNOWN |
| ubuntu | 18.04 | noarch | xorg-server-hwe-18.04 | < any | UNKNOWN |
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4.7 Medium
CVSS3
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
5.7 Medium
AI Score
Confidence
High
0.0004 Low
EPSS
Percentile
10.2%
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