PT-2025-11371 · X.Org+3 · X.Org Server+3

Lemonsqueeze · Published 2021-11-22 · Updated 2025-08-12 · CVE-2022-49737

Positive Technologies (AI Summary)

CVSS v3.1

7.7

High

Base vector

AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:H

Name of the Vulnerable Software and Affected Versions X.Org X server versions 20.11 through 21.1.16

Description The issue arises when a client application uses easystroke for mouse gestures, and the main thread modifies various data structures used by the input thread without acquiring a lock, resulting in a race condition. Specifically, AttachDevice in dix/devices.c does not acquire an input lock.

Recommendations For X.Org X server versions 20.11 through 21.1.16, consider disabling the use of easystroke for mouse gestures until a patch is available, as a temporary workaround to minimize the risk of exploitation. Restrict access to the AttachDevice function in dix/devices.c to prevent unauthorized modifications to data structures used by the input thread.

Exploit

Fix

Weakness Enumeration

CWE-413

Related Identifiers

BDU:2025-03961

CVE-2022-49737

OPENSUSE-SU-2025:14916-1

OPENSUSE-SU-2025_0984-1

SUSE-SU-2025:0984-1

SUSE-SU-2025_0984-1

Affected Products

Astra Linux

Debian

Suse

X.Org Server

References · 28

• 🔥 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1081338 · Exploit
• https://osv.dev/vulnerability/openSUSE-SU-2025:14916-1 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-03961 · Security Note
• https://cve.org/CVERecord?id=CVE-2022-49737 · Security Note
• https://osv.dev/vulnerability/SUSE-SU-2025:0984-1 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-49737 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-49737 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se47-bulletin-2025-0422SE137 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-49737 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se17-bulletin-2025-0319SE17 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-49737 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-12-CVE-2022-49737 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-49737 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se18-bulletin-2025-0411SE18 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2022-49737 · Security Note