Riskcovery

CVE-2023-39198

Kernel: qxl: race condition leading to use-after-free in qxl_mode_dumb_create()

State
Published
Severity
7.5 High
Published
Nov 9, 2023
Updated
Mar 24, 2026
Reserved
Jul 25, 2023

Read the record on cve.org

Description

A race condition was found in the QXL driver in the Linux kernel. The qxl_mode_dumb_create() function dereferences the qobj returned by the qxl_gem_object_create_with_handle(), but the handle is the only one holding a reference to it. This flaw allows an attacker to guess the returned handle value and trigger a use-after-free issue, potentially leading to a denial of service or privilege escalation.

Scores

CVSSScoreVectorSource
3.17.5 HighCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:Hredhat

Weaknesses

Affected Products

ProductVersions
Red Hat Enterprise Linux 8Red Hat
  • 0:4.18.0-553.rt7.342.el8_10 and laterNot affected
Red Hat Enterprise Linux 8Red Hat
  • 0:4.18.0-553.el8_10 and laterNot affected
Red Hat Enterprise Linux 9Red Hat
  • 0:5.14.0-427.13.1.el9_4 and laterNot affected
Red Hat Enterprise Linux 9Red Hat
  • 0:5.14.0-427.13.1.el9_4 and laterNot affected
Red Hat Enterprise Linux 6Red Hat
    Red Hat Enterprise Linux 7Red Hat
      Red Hat Enterprise Linux 7Red Hat
        Red Hat Enterprise Linux 9Red Hat

          References

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