Double Free in Linux Kernel
CVE-2023-33952
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.
Vulnerability class: Double Free
EPSS: 0.005 (37.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.7 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Linux Linux_kernel
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8 — versions 0:4.18.0-513.5.1.rt7.307.el8_9, 0:4.18.0-513.5.1.el8_9
- Red Hat Enterprise Linux 8.8 Extended Update Support — versions 0:4.18.0-477.51.1.el8_8
- Red Hat Enterprise Linux 9 — versions 0:5.14.0-362.8.1.el9_3
- Red Hat Enterprise Linux 9.2 Extended Update Support — versions 0:5.14.0-284.75.1.el9_2, 0:5.14.0-284.75.1.rt14.360.el9_2
- Redhat Enterprise_linux — versions 8.0, 9.0
- Redhat Enterprise_linux_for_real_time — versions 8.0
- Redhat Enterprise_linux_for_real_time_for_nfv — versions 8.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)
- secalert@redhat.com (x_refsource_REDHAT, vendor-advisory)
- secalert@redhat.com (x_refsource_REDHAT, Third Party Advisory, vdb-entry)
- secalert@redhat.com (x_refsource_REDHAT, issue-tracking, Patch, Third Party Advisory, Issue Tracking)
- secalert@redhat.com (Patch, VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-33952?
- CVE-2023-33952 is a medium-severity vulnerability in Linux Kernel, classified under Double Free. CVSS score: 6.7/10. Published 2023-07-24.
- How severe is CVE-2023-33952?
- Medium severity. CVSS v3 base score is 6.7 out of 10.
- Is CVE-2023-33952 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.