SB2023100221 - SUSE update for the Linux Kernel (Live Patch 2 for SLE 15 SP5) 

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Main Vulnerability Database SB2023100221

SB2023100221 - SUSE update for the Linux Kernel (Live Patch 2 for SLE 15 SP5)

Published: October 2, 2023

Security Bulletin ID SB2023100221
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-2023-3609)

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

The vulnerability exists due to a use-after-free error within the the Linux kernel net/sched: cls_u32 component. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.


2) Use-after-free (CVE-ID: CVE-2023-3776)

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

The vulnerability exists due to a use-after-free error within the the Linux kernel's net/sched: cls_fw component. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.


3) Stack-based buffer overflow (CVE-ID: CVE-2023-4273)

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

The vulnerability exists due to a boundary error in the implementation of the file name reconstruction function in the exFAT driver in Linux kernel. A local user can trigger a stack overflow and execute arbitrary code with elevated privileges.


Remediation

Install update from vendor's website.

References