Riskcovery

CVE-2023-5633

Kernel: vmwgfx: reference count issue leads to use-after-free in surface handling

State
Published
Severity
7.8 High
Published
Oct 23, 2023
Updated
Feb 25, 2026
Reserved
Oct 18, 2023

Read the record on cve.org

Description

The reference count changes made as part of the CVE-2023-33951 and CVE-2023-33952 fixes exposed a use-after-free flaw in the way memory objects were handled when they were being used to store a surface. When running inside a VMware guest with 3D acceleration enabled, a local, unprivileged user could potentially use this flaw to escalate their privileges.

Scores

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

Weaknesses

  • CWE-911 Improper Update of Reference Count

Affected Products

ProductVersions
Red Hat Enterprise Linux 8Red Hat
  • 0:4.18.0-513.11.1.rt7.313.el8_9 and laterNot affected
Red Hat Enterprise Linux 8Red Hat
  • 0:4.18.0-513.11.1.el8_9 and laterNot affected
Red Hat Enterprise Linux 8.8 Extended Update SupportRed Hat
  • 0:4.18.0-477.51.1.el8_8 and laterNot affected
Red Hat Enterprise Linux 9Red Hat
  • 0:5.14.0-362.18.1.el9_3 and laterNot affected
Red Hat Enterprise Linux 9Red Hat
  • 0:5.14.0-362.18.1.el9_3 and laterNot affected
Red Hat Enterprise Linux 9.2 Extended Update SupportRed Hat
  • 0:5.14.0-284.75.1.el9_2 and laterNot affected
Red Hat Enterprise Linux 9.2 Extended Update SupportRed Hat
  • 0:5.14.0-284.75.1.rt14.360.el9_2 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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