CVE-2023-5633CWE-911

Kernel: vmwgfx: reference count issue leads to use-after-free in surface handling

High · published October 23, 2023

CVSS v3.1
7.8
EPSS
0%
Percentile
19.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00280 · 19.3th percentile
Weakness
CWE-911 · Improper Update of Reference Count
Published
2023-10-23T21:58Z
EPSS history
Timeline
  • 23 OCT 21:58Z
    Kernel: vmwgfx: reference count issue leads to use-after-free in surface handling
    cvelistv5