SB2023073118 - Denial of service in Linux kernel nvmem



SB2023073118 - Denial of service in Linux kernel nvmem

Published: July 31, 2023

Security Bulletin ID SB2023073118
Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) NULL pointer dereference (CVE-ID: CVE-2023-3359)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error within the brcm_nvram_parse() function in drivers/nvmem/brcm_nvram.c. A local user can pass specially crafted data to the system and perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.