Skip to main content

Improper Update of Reference Count

CVE-2023-5633

High
7.8/10

Summary

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.

  • LOW
  • LOCAL
  • HIGH
  • UNCHANGED
  • NONE
  • LOW
  • HIGH
  • HIGH

CWE-911 - Improper Update of Reference Count

The software uses a reference count to manage a resource, but it does not update or incorrectly updates the reference count.

References

Advisory Timeline

  • Published