Double Free Affecting bpftool package, versions <0:4.18.0-477.51.1.el8_8


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.38% (73rd percentile)

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  • Snyk IDSNYK-RHEL8-BPFTOOL-6470900
  • published20 Mar 2024
  • disclosed15 Feb 2023

Introduced: 15 Feb 2023

CVE-2023-33952  (opens in a new tab)
CWE-415  (opens in a new tab)

How to fix?

Upgrade RHEL:8 bpftool to version 0:4.18.0-477.51.1.el8_8 or higher.
This issue was patched in RHSA-2024:1404.

NVD Description

Note: Versions mentioned in the description apply only to the upstream bpftool package and not the bpftool package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

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.

CVSS Scores

version 3.1