CVE-2022-46340

2022-12-1400:00:00

redhat

www.cve.org

x.org

stack corruption

xtest extension

local privileges

remote code execution

x server

9.1 High

AI Score

Confidence

High

0.025 Low

EPSS

Percentile

90.3%

JSON

A vulnerability was found in X.Org. This security flaw occurs becuase the swap handler for the XTestFakeInput request of the XTest extension may corrupt the stack if GenericEvents with lengths larger than 32 bytes are sent through a the XTestFakeInput request. This issue can lead to local privileges elevation on systems where the X server is running privileged and remote code execution for ssh X forwarding sessions. This issue does not affect systems where client and server use the same byte order.

CNA Affected

[
  {
    "vendor": "n/a",
    "product": "xorg-x11-server",
    "versions": [
      {
        "version": "xorg-x11-server-1.20.4",
        "status": "affected"
      }
    ]
  }
]