CVE-2023-33952
published 2023-10-23CVE-2023-33952: 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…
PriorityP430medium6.7CVSS 3.1
AVLACLPRHUINSUCHIHAH
EPSS
0.46%
37.4th percentile
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
62 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.15-1 (bookworm) | linux 6.1.15-1 (bookworm) |
| debian | linux | < linux 6.1.76-1 (bookworm) | linux 6.1.76-1 (bookworm) |
| linux | linux_kernel | <= 6.3.9 | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 6.1.76-1 | 6.1.76-1 |
| linux | linux_kernel | >= 0 < 6.1.15-1 | 6.1.15-1 |
| linux | linux_kernel | >= 0 < 6.5.8-1 | 6.5.8-1 |
| linux | linux_kernel | >= 0 < 6.1.15-1 | 6.1.15-1 |
| linux | linux_kernel | >= 0 < 6.5.8-1 | 6.5.8-1 |
| linux | linux_kernel | >= 0 < 6.1.15-1 | 6.1.15-1 |
| linux | linux_kernel | >= 6.1.13 < 6.1.75 | 6.1.75 |
| linux | linux_kernel | >= 6.2 < 6.5.8 | 6.5.8 |
| msrc | cbl2_hyperv-daemons_5.15.158.1-1_on_cbl_mariner_2.0 | — | — |
| msrc | cbl2_kernel_5.15.135.1-2_on_cbl_mariner_2.0 | — | — |
| msrc | cbl_mariner_2.0_arm | — | — |
| msrc | cbl_mariner_2.0_x64 | — | — |
| redhat | codeready_linux_builder | — | — |
| redhat | codeready_linux_builder | — | — |
| redhat | codeready_linux_builder_eus | — | — |
| redhat | codeready_linux_builder_eus | — | — |
| redhat | codeready_linux_builder_eus | — | — |
| redhat | codeready_linux_builder_for_arm64 | — | — |
| redhat | codeready_linux_builder_for_arm64 | — | — |
| redhat | codeready_linux_builder_for_arm64_eus | — | — |
| redhat | codeready_linux_builder_for_arm64_eus | — | — |
CVSS provenance
nvdv3.16.7MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
osv6.7MEDIUM
vendor_debian6.7MEDIUM
vendor_msrc6.7MEDIUM
vendor_redhat6.7MEDIUM
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GHSA
GHSA-3hmc-jxr7-rw7j: 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 h
ghsa_unreviewed·2023-10-24·CVSS 6.7
CVE-2023-5633 [MEDIUM] CWE-416 GHSA-3hmc-jxr7-rw7j: 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 h
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.
OSV
CVE-2023-5633: 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 h
osv·2023-10-23·CVSS 5.3
CVE-2023-5633 [MEDIUM] CVE-2023-5633: 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 h
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.
GHSA
GHSA-8f4h-wr7j-w67m: A double-free vulnerability was found in the vmwgfx driver in the Linux kernel
ghsa_unreviewed·2023-07-24
CVE-2023-33952 [MEDIUM] CWE-415 GHSA-8f4h-wr7j-w67m: A double-free vulnerability was found in the vmwgfx driver in the Linux kernel
A double-free vulnerability was found in the vmwgfx driver in the Linux kernel. The flaw exists within the handling of vmw_buffer_object objects. The issue results from the lack of validating the existence of an object prior to performing further free operations on the object. This flaw allows a local privileged user to escalate privileges and execute code in the context of the kernel.
OSV
CVE-2023-33952: A double-free vulnerability was found in handling vmw_buffer_object objects in the vmwgfx driver in the Linux kernel
osv·2023-07-24·CVSS 6.7
CVE-2023-33952 [MEDIUM] CVE-2023-33952: A double-free vulnerability was found in handling vmw_buffer_object objects in the vmwgfx driver in the Linux kernel
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.
Red Hat
kernel: vmwgfx: reference count issue leads to use-after-free in surface handling
vendor_redhat·2023-09-28·CVSS 6.7
CVE-2023-5633 [MEDIUM] CWE-911 kernel: vmwgfx: reference count issue leads to use-after-free in surface handling
kernel: vmwgfx: reference count issue leads to use-after-free in surface handling
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 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.
M
Microsoft
Kernel: vmwgfx: double free within the handling of vmw_buffer_object objects
vendor_msrc·2023-07-11·CVSS 6.7
CVE-2023-33952 [MEDIUM] CWE-415 Kernel: vmwgfx: double free within the handling of vmw_buffer_object objects
Kernel: vmwgfx: double free within the handling of vmw_buffer_object objects
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
redhat: redhat
Customer Action Required: Yes
Remediation: CBL-Mariner Releases
R
Red Hat
kernel: vmwgfx: double free within the handling of vmw_buffer_object objects
vendor_redhat·2023-02-15·CVSS 6.7
CVE-2023-33952 [MEDIUM] CWE-415 kernel: vmwgfx: double free within the handling of vmw_buffer_object objects
kernel: vmwgfx: double free within the handling of vmw_buffer_object objects
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.
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 kerne
Debian
CVE-2023-33952: linux - A double-free vulnerability was found in handling vmw_buffer_object objects in t...
vendor_debian·2023·CVSS 6.7
CVE-2023-33952 [MEDIUM] CVE-2023-33952: linux - A double-free vulnerability was found in handling vmw_buffer_object objects in t...
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.
Scope: local
bookworm: resolved (fixed in 6.1.15-1)
bullseye: resolved
forky: resolved (fixed in 6.1.15-1)
sid: resolved (fixed in 6.1.15-1)
trixie: resolved (fixed in 6.1.15-1)
Debian
CVE-2023-5633: linux - The reference count changes made as part of the CVE-2023-33951 and CVE-2023-3395...
vendor_debian·2023·CVSS 6.5
CVE-2023-5633 [MEDIUM] CVE-2023-5633: linux - The reference count changes made as part of the CVE-2023-33951 and CVE-2023-3395...
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.
Scope: local
bookworm: resolved (fixed in 6.1.76-1)
bullseye: resolved
forky: resolved (fixed in 6.5.8-1)
sid: resolved (fixed in 6.5.8-1)
trixie: resolved (fixed in 6.5.8-1)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2023-5633 kernel: vmwgfx: reference count issue leads to use-after-free in surface handling
bugzilla·2023-10-23·CVSS 5.3
CVE-2023-5633 [MEDIUM] CVE-2023-5633 kernel: vmwgfx: reference count issue leads to use-after-free in surface handling
CVE-2023-5633 kernel: vmwgfx: reference count issue leads to use-after-free in surface handling
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.
Upstream patch & commit:
https://lists.freedesktop.org/archives/dri-devel/2023-September/424805.html
https://github.com/torvalds/linux/commit/91398b413d03660fd5828f7b4abc64e884b98069
Discussion:
Created kernel tracking bugs for this issue:
Affects: fedora-all [bug 2245668]
---
This is fixed for Fedora with the 6.5.8 stable kernel update.
Bugzilla
CVE-2023-33952 kernel: vmwgfx: double free within the handling of vmw_buffer_object objects
bugzilla·2023-06-28·CVSS 5.3
CVE-2023-33952 [MEDIUM] CVE-2023-33952 kernel: vmwgfx: double free within the handling of vmw_buffer_object objects
CVE-2023-33952 kernel: vmwgfx: double free within the handling of vmw_buffer_object objects
A double free vulnerability was found in the vmwgfx driver in the Linux kernel. Quoting ZDI security advisory [1]:
"This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel. An attacker must first obtain the ability to execute high-privileged code on the target system in order to exploit this vulnerability.
The specific flaw exists within the handling of vmw_buffer_object objects. The issue results from the lack of validating the existence of an object prior to performing further free operations on the object. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the kernel."
[1] https://www.zeroday
https://access.redhat.com/errata/RHSA-2024:0113https://access.redhat.com/errata/RHSA-2024:0134https://access.redhat.com/errata/RHSA-2024:0461https://access.redhat.com/errata/RHSA-2024:1404https://access.redhat.com/errata/RHSA-2024:4823https://access.redhat.com/errata/RHSA-2024:4831https://access.redhat.com/security/cve/CVE-2023-5633https://bugzilla.redhat.com/show_bug.cgi?id=2245663https://access.redhat.com/errata/RHSA-2024:0113https://access.redhat.com/errata/RHSA-2024:0134https://access.redhat.com/errata/RHSA-2024:0461https://access.redhat.com/errata/RHSA-2024:1404https://access.redhat.com/errata/RHSA-2024:4823https://access.redhat.com/errata/RHSA-2024:4831https://access.redhat.com/security/cve/CVE-2023-5633https://bugzilla.redhat.com/show_bug.cgi?id=2245663
2023-10-23
Published