CVE-2022-49737

Public Exploit

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.

Category

7.7
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.07%
Affected: X.org X server
Published at:
Updated at:

References

Link Tags
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1081338
https://gitlab.freedesktop.org/xorg/xserver/-/issues/1260
https://bugs.debian.org/cgi-bin/bugreport.cgi?att=1;bug=1081338;filename=dix-Hold-input-lock-for-AttachDevice.patch;msg=5
https://gitlab.freedesktop.org/xorg/xserver/-/commit/dc7cb45482cea6ccec22d117ca0b489500b4d0a0

Frequently Asked Questions

What is the severity of CVE-2022-49737?
CVE-2022-49737 has been scored as a high severity vulnerability.
How to fix CVE-2022-49737?
To fix CVE-2022-49737, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-49737 being actively exploited in the wild?
It is possible that CVE-2022-49737 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-49737?
CVE-2022-49737 affects X.org X server.
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