X.Org Server OOB Memory Access: Priv Esc & RCE via X11 SSH
CVE-2024-0229 Published on February 9, 2024

Xorg-x11-server: reattaching to different master device may lead to out-of-bounds memory access
An out-of-bounds memory access flaw was found in the X.Org server. This issue can be triggered when a device frozen by a sync grab is reattached to a different master device. This issue may lead to an application crash, local privilege escalation (if the server runs with extended privileges), or remote code execution in SSH X11 forwarding environments.

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Vulnerability Analysis

CVE-2024-0229 can be exploited with local system access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.

Attack Vector:
LOCAL
Attack Complexity:
LOW
Privileges Required:
LOW
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH

Timeline

Reported to Red Hat.

Made public. 13 days later.

Weakness Type

What is a Memory Corruption Vulnerability?

The software writes data past the end, or before the beginning, of the intended buffer. Typically, this can result in corruption of data, a crash, or code execution. The software may modify an index or perform pointer arithmetic that references a memory location that is outside of the boundaries of the buffer. A subsequent write operation then produces undefined or unexpected results.

CVE-2024-0229 has been classified to as a Memory Corruption vulnerability or weakness.


Products Associated with CVE-2024-0229

You can be notified by email with stack.watch whenever vulnerabilities like CVE-2024-0229 are published in these products:

Canonical Ubuntu Linux
 
Oracle
 
Xorg Xwayland
 
Xorg X Server
 
Fedora Project Fedora
 
Red Hat Enterprise Linux (RHEL)
 
Red Hat Enterprise Linux Aus
 
Red Hat Enterprise Linux Tus
 
Red Hat Enterprise Linux Eus
 
Red Hat Enterprise Linux Update Services Sap Solutions
 
Red Hat Rhel Els
 
Red Hat Rhel E4s
 
Red Hat Rhel Tus
 
Red Hat Rhel Aus
 
Red Hat Rhel Eus
 

Exploit Probability

EPSS
0.32%
Percentile
54.65%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.