CVE-2023-33952

Kernel: vmwgfx: double free within the handling of vmw_buffer_object objects

Published Jul 24, 2023 CVSS 3.1 · 6.7 Medium EPSS < 1% KEV · Not listed
Description
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.

Remediation

Vendor Workaround

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.

Tracking

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Advisories

Source ID Title
EUVD EUVD EUVD-2023-38088 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.
History
Type Values Removed Values Added
First Time appeared Redhat rhel Els
CPEs cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:rhel_els:6
cpe:/o:redhat:rhel_els:7
Vendors & Products Redhat rhel Els
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
redhat
Published
Updated
Nov 6, 2026, 8:24 PM
Reserved
May 24, 2023, 7:11 AM
Status
Modified
Published
Jul 24, 2023, 4:15 PM
Modified
Nov 6, 2026, 9:17 PM
Severity
Moderate
Public date
Feb 15, 2023, 12:00 AM