SB2025040741 - Ubuntu update for linux-hwe-5.4 

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Main Vulnerability Database SB2025040741

SB2025040741 - Ubuntu update for linux-hwe-5.4

Published: April 7, 2025

Security Bulletin ID SB2025040741
Severity
Medium
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Adjecent network
Highest impact Code execution

Breakdown by Severity

Medium 33% Low 67%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 secuirty vulnerabilities.


1) Use-after-free (CVE-ID: CVE-2024-56658)

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

The vulnerability exists due to a use-after-free error within the LLIST_HEAD(), net_free() and cleanup_net() functions in net/core/net_namespace.c. A local user can escalate privileges on the system.


2) Use-after-free (CVE-ID: CVE-2024-35864)

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 smb2_is_valid_lease_break() function in fs/smb/client/smb2misc.c. A remote non-authenticated attacker 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.

References