CVE-2023-28327

MEDIUM

Linux Kernel < 6.0 - Denial of Service via NULL Pointer Dereference in UNIX Protocol

Title source: llm

Description

A NULL pointer dereference flaw was found in the UNIX protocol in net/unix/diag.c In unix_diag_get_exact in the Linux Kernel. The newly allocated skb does not have sk, leading to a NULL pointer. This flaw allows a local user to crash or potentially cause a denial of service.

References (1)

Core 1

Core References

Issue Tracking, Patch

https://bugzilla.redhat.com/show_bug.cgi?id=2177382

Scores

CVSS v3 5.5

EPSS 0.0001

EPSS Percentile 1.6%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-476

Status published

Products (3)

linux/linux_kernel < 6.0

redhat/enterprise_linux 8.0

redhat/enterprise_linux 9.0

Published Apr 19, 2023

Tracked Since Feb 18, 2026