---
cve: "CVE-2022-49737"
severity: "HIGH"
cvss: 7.7
epss: "0.3%"
vendor: "X.org"
kev: false
exploited: false
published: "2025-03-16 01:15:35"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-10-01T15:47:47+02:00"
---

# CVE-2022-49737

> 7.7 HIGH

## Beschreibung

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.

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **poc**
  - Automatable: **no**
  - Technical Impact: **partial**

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:H
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Hoch | good |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |
| S Scope | Verändert | bad |
| C Vertraulichkeit | Gering | warn |
| I Integrität | Gering | warn |
| A Verfügbarkeit | Hoch | bad |

## Patch verfügbar (OSV)

- b7f84e6d509c004a7abb514af75b94cb907d451b (Commit)
- dc7cb45482cea6ccec22d117ca0b489500b4d0a0 (Commit)

## BSI-Hinweise (deutsch)

- [X.Org X11: Schwachstelle ermöglicht Denial of Service](https://wid.cert-bund.de/portal/wid/sicherheitshinweis/WID-SEC-W-2025-0572)

## Referenzen

- <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>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2022-49737) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_