SB20240806176 - Amazon Linux AMI update for kernel



SB20240806176 - Amazon Linux AMI update for kernel

Published: August 6, 2024

Security Bulletin ID SB20240806176
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) Improper locking (CVE-ID: CVE-2024-26923)

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

The vulnerability exists due to improper locking within the unix_gc() function in net/unix/garbage.c due to garbage collector does not take into account the risk of embryo getting enqueued during the garbage collection. A local user can execute arbitrary code with elevated privileges.


2) Improper locking (CVE-ID: CVE-2024-26925)

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

The vulnerability exists due to improper locking within the __nf_tables_abort() and nf_tables_abort() functions in net/netfilter/nf_tables_api.c. A local user can perform a denial of service (DoS) attack.


3) Use-after-free (CVE-ID: CVE-2024-26928)

The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a use-after-free error within the cifs_debug_files_proc_show() function in fs/smb/client/cifs_debug.c. A remote non-authenticated attacker can perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.