CVE-2023-39198

medium

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.

References

https://bugzilla.redhat.com/show_bug.cgi?id=2218332

https://access.redhat.com/security/cve/CVE-2023-39198

https://access.redhat.com/errata/RHSA-2024:3138

https://access.redhat.com/errata/RHSA-2024:2950

https://access.redhat.com/errata/RHSA-2024:2394

Details

Source: Mitre, NVD

Published: 2023-11-09

Updated: 2024-09-13

Risk Information

CVSS v2

Base Score: 5.9

Vector: CVSS2#AV:L/AC:H/Au:M/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 6.4

Vector: CVSS:3.0/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

Severity: Medium