SB2023082941 - Red Hat Enterprise Linux 8.2 Telecommunications Update Service update for kernel-rt

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Main Vulnerability Database SB2023082941

SB2023082941 - Red Hat Enterprise Linux 8.2 Telecommunications Update Service update for kernel-rt

Published: August 29, 2023

Security Bulletin ID SB2023082941
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) Out-of-bounds read (CVE-ID: CVE-2023-2124)

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

The vulnerability exists due to a boundary condition within the XFS subsystem in Linux kernel. A local user can trigger an out-of-bounds read error and crash the kernel.


2) Out-of-bounds write (CVE-ID: CVE-2023-3090)

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

The vulnerability exists due to a boundary error within the ipvlan network driver in Linux kernel. A local user can trigger an out-of-bounds write and execute arbitrary code with elevated privileges.


3) Out-of-bounds write (CVE-ID: CVE-2023-35788)

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

The vulnerability exists due to a boundary error within the fl_set_geneve_opt() function in net/sched/cls_flower.c in Linux kernel. A local user can trigger an out-of-bounds write and execute arbitrary code with elevated privileges.


Remediation

Install update from vendor's website.

References