CVE-2023-33952

Summary

A double-free vulnerability was found in handling vmw_buffer_object objects in the vmwgfx driver in the Linux kernel. This issue occurs due to the lack of validating the existence of an object prior to performing further free operations on the object, which may allow a local privileged user to escalate privileges and execute code in the context of the kernel.

Affected Software

VendorProductVersion RangeStatus
Red HatRed Hat Enterprise Linux 80:4.18.0-513.5.1.rt7.307.el8_9 < *unaffected
Red HatRed Hat Enterprise Linux 80:4.18.0-513.5.1.el8_9 < *unaffected
Red HatRed Hat Enterprise Linux 8.8 Extended Update Support0:4.18.0-477.51.1.el8_8 < *unaffected
Red HatRed Hat Enterprise Linux 90:5.14.0-362.8.1.el9_3 < *unaffected
Red HatRed Hat Enterprise Linux 90:5.14.0-362.8.1.el9_3 < *unaffected
Red HatRed Hat Enterprise Linux 9.2 Extended Update Support0:5.14.0-284.75.1.el9_2 < *unaffected
Red HatRed Hat Enterprise Linux 9.2 Extended Update Support0:5.14.0-284.75.1.rt14.360.el9_2 < *unaffected

Weaknesses

  • CWE-415: Double Free

Workarounds

This flaw can be mitigated by preventing the affected vmwgfx kernel module from being loaded. For instructions on how to blacklist a kernel module, please see https://access.redhat.com/solutions/41278.

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: total

References