SARA / Free Tools / CVE / CVE-2023-39198

CVE-2023-39198 — A race condition was found in the QXL driver in the Linux kernel

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 ret

CVSS
7.5 HIGH
EPSS
1.00% (top 60.00%)
CWE
CWE-366
Published
2023-11-09T19:15:47.605Z
Last modified
2026-02-18T17:15:18.148Z
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

01What is this vulnerability?

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…

02Affected products

VendorProductVersions
Red HatRed Hat Enterprise Linux 80:4.18.0-553.rt7.342.el8_10
Red HatRed Hat Enterprise Linux 80:4.18.0-553.el8_10
Red HatRed Hat Enterprise Linux 90:5.14.0-427.13.1.el9_4
Red HatRed Hat Enterprise Linux 90:5.14.0-427.13.1.el9_4
Red HatRed Hat Enterprise Linux 6unspecified
Red HatRed Hat Enterprise Linux 7unspecified
Red HatRed Hat Enterprise Linux 7unspecified
Red HatRed Hat Enterprise Linux 9unspecified

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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