SB2024020543 - SUSE update for the Linux Kernel RT (Live Patch 3 for SLE 15 SP4) 

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Main Vulnerability Database SB2024020543

SB2024020543 - SUSE update for the Linux Kernel RT (Live Patch 3 for SLE 15 SP4)

Published: February 5, 2024 Updated: February 27, 2024

Security Bulletin ID SB2024020543
Severity
Low
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Local access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 secuirty vulnerabilities.


1) Use-after-free (CVE-ID: CVE-2023-5178)

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

The vulnerability exists due to a use-after-free error within the drivers/nvme/target/tcp.c in nvmet_tcp_free_crypto due to a logical bug in the NVMe-oF/TCP subsystem in the Linux kernel. A local authenticated user can trigger a use-after-free error and escalate privileges on the system.


2) NULL pointer dereference (CVE-ID: CVE-2023-6176)

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

The vulnerability exists due to a NULL pointer dereference error in the Linux kernel API for the cryptographic algorithm scatterwalk functionality in scatterwalk_copychunks(). A local user can send a malicious packet with specific socket configuration and crash the OS kernel.


3) Use-after-free (CVE-ID: CVE-2023-6932)

The vulnerability allows a local authenticated user to execute arbitrary code.

The vulnerability exists due to a use-after-free error within the ipv4 igmp component in Linux kernel. A local authenticated user can trigger a use-after-free error and execute arbitrary code.


Remediation

Install update from vendor's website.

References