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Red Hat: CVE-2023-39198: kernel: QXL: race condition leading to use-after-free in qxl_mode_dumb_create() (Multiple Advisories)

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Red Hat: CVE-2023-39198: kernel: QXL: race condition leading to use-after-free in qxl_mode_dumb_create() (Multiple Advisories)

Severity
6
CVSS
(AV:L/AC:H/Au:M/C:C/I:C/A:C)
Published
11/09/2023
Created
05/24/2024
Added
05/23/2024
Modified
12/05/2024

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.

Solution(s)

  • redhat-upgrade-kernel
  • redhat-upgrade-kernel-rt

References

  • CVE-2023-39198
  • RHSA-2024:2394
  • RHSA-2024:2950
  • RHSA-2024:3138
  • 查看数 702
  • 已创建
  • 最后回复

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