CVE-2022-49737

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.

References

https://gitlab.freedesktop.org/xorg/xserver/-/issues/1260

https://gitlab.freedesktop.org/xorg/xserver/-/commit/dc7cb45482cea6ccec22d117ca0b489500b4d0a0

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1081338

https://bugs.debian.org/cgi-bin/bugreport.cgi?att=1;bug=1081338;filename=dix-Hold-input-lock-for-AttachDevice.patch;msg=5

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3