vulnerability
Red Hat: CVE-2023-5633: kernel: vmwgfx: reference count issue leads to use-after-free in surface handling (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:L/Au:S/C:C/I:C/A:C) | Oct 23, 2023 | Jan 11, 2024 | Mar 27, 2026 |
Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
Oct 23, 2023
Added
Jan 11, 2024
Modified
Mar 27, 2026
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.
Solutions
redhat-upgrade-kernelredhat-upgrade-kernel-rt
References
Rapid7 Labs
2026 Global Threat Landscape Report
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