SB2024010912 - Red Hat Enterprise Linux 8 update for kpatch-patch

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Main Vulnerability Database SB2024010912

SB2024010912 - Red Hat Enterprise Linux 8 update for kpatch-patch

Published: January 9, 2024

Security Bulletin ID SB2024010912
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) Use-after-free (CVE-ID: CVE-2023-4622)

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

The vulnerability exists due to a use-after-free error within the unix_stream_sendpage() function in af_unix component. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.


2) Out-of-bounds write (CVE-ID: CVE-2023-42753)

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

The vulnerability exists due to a boundary error in the netfilter subsystem 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