NULL Pointer Dereference Affecting bpftool package, versions <0:4.18.0-477.43.1.el8_8


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.04% (5th percentile)

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  • Snyk IDSNYK-RHEL8-BPFTOOL-6211934
  • published31 Jan 2024
  • disclosed18 Nov 2022

Introduced: 18 Nov 2022

CVE-2023-28328  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade RHEL:8 bpftool to version 0:4.18.0-477.43.1.el8_8 or higher.
This issue was patched in RHSA-2024:0575.

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 NULL pointer dereference flaw was found in the az6027 driver in drivers/media/usb/dev-usb/az6027.c in the Linux Kernel. The message from user space is not checked properly before transferring into the device. This flaw allows a local user to crash the system or potentially cause a denial of service.

CVSS Scores

version 3.1