עברית

Vulnerability Intelligence

CVE-2023-5633

High 7.8

Published
Last modified
NVD status
Modified

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.

Affected products

linux: linux kernel; redhat: codeready linux builder; redhat: codeready linux builder eus; redhat: codeready linux builder for arm64; redhat: codeready linux builder for arm64 eus; redhat: codeready linux builder for ibm z systems; redhat: codeready linux builder for ibm z systems eus; redhat: codeready linux builder for power little endian; redhat: codeready linux builder for power little endian eus; redhat: enterprise linux; redhat: enterprise linux eus; redhat: enterprise linux for arm 64; redhat: enterprise linux for arm 64 eus; redhat: enterprise linux for ibm z systems; redhat: enterprise linux for ibm z systems eus

References10

Metrics

CVSS 3.1
7.8 HIGH Score source: NVD CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS — exploit probability
0% percentile: 20 · as of 5 November 2026
CWE
CWE-911CWE-416

Could this be exploited in your environment?

A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.