SB2023121375 - SUSE update for the Linux Kernel RT (Live Patch 6 for SLE 15 SP5)

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Main Vulnerability Database SB2023121375

SB2023121375 - SUSE update for the Linux Kernel RT (Live Patch 6 for SLE 15 SP5)

Published: December 13, 2023

Security Bulletin ID SB2023121375
Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Out-of-bounds write (CVE-ID: CVE-2023-2163)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error in BPF verifier caused by improper marking of registers for precision tracking in certain situations. A local user can trigger an out-of-bounds write and execute arbitrary code with elevated privileges.


2) Resource management error (CVE-ID: CVE-2023-3777)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to improper handling of table rules flush in certain circumstances within the netfilter subsystem in net/netfilter/nf_tables_api.c. A local user can perform a denial of service (DoS) attack or execute arbitrary code with elevated privileges.


Remediation

Install update from vendor's website.

References