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cvelistRedhatCVELIST:CVE-2023-1393
HistoryMar 30, 2023 - 12:00 a.m.

CVE-2023-1393

2023-03-3000:00:00
CWE-416
redhat
www.cve.org
2
x.org server
overlay window
use-after-free
local privilege escalation
compscreen structure

7.9 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

15.9%

A flaw was found in X.Org Server Overlay Window. A Use-After-Free may lead to local privilege escalation. If a client explicitly destroys the compositor overlay window (aka COW), the Xserver would leave a dangling pointer to that window in the CompScreen structure, which will trigger a use-after-free later.

CNA Affected

[
  {
    "vendor": "n/a",
    "product": "xorg-server",
    "versions": [
      {
        "version": "xorg-server 21.1.8",
        "status": "affected"
      }
    ]
  }
]

References