CVE-2022-49737
X.Org X Server Input Thread Race Condition
Description
In X.Org X server 20.11 through 21.1.16, when a client application uses easystroke for mouse gestures, the main thread modifies various data structures used by the input thread without acquiring a lock, aka a race condition. In particular, AttachDevice in dix/devices.c does not acquire an input lock.
INFO
Published Date :
March 16, 2025, 1:15 a.m.
Last Modified :
March 17, 2025, 4:15 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update X.Org X server to the latest version.
- Ensure input locks are properly implemented.
- Review code for concurrent access issues.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2022-49737.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-49737 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2022-49737
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2022-49737 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-49737 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Mar. 17, 2025
Action Type Old Value New Value Added Reference https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1081338 -
New CVE Received by [email protected]
Mar. 16, 2025
Action Type Old Value New Value Added Description In X.Org X server 20.11 through 21.1.16, when a client application uses easystroke for mouse gestures, the main thread modifies various data structures used by the input thread without acquiring a lock, aka a race condition. In particular, AttachDevice in dix/devices.c does not acquire an input lock. Added CVSS V3.1 AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:H Added CWE CWE-413 Added Reference https://bugs.debian.org/cgi-bin/bugreport.cgi?att=1;bug=1081338;filename=dix-Hold-input-lock-for-AttachDevice.patch;msg=5 Added Reference https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1081338 Added Reference https://gitlab.freedesktop.org/xorg/xserver/-/commit/dc7cb45482cea6ccec22d117ca0b489500b4d0a0 Added Reference https://gitlab.freedesktop.org/xorg/xserver/-/issues/1260