SB2025050738 - Ubuntu update for linux-azure

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Main Vulnerability Database SB2025050738

SB2025050738 - Ubuntu update for linux-azure

Published: May 7, 2025

Security Bulletin ID SB2025050738
Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Local access
Highest impact Denial of service

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Use of uninitialized resource (CVE-ID: CVE-2025-21813)

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

The vulnerability exists due to use of uninitialized resource within the tmigr_setup_groups() function in kernel/time/timer_migration.c. A local user can perform a denial of service (DoS) attack.


2) NULL pointer dereference (CVE-ID: CVE-2025-21953)

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

The vulnerability exists due to NULL pointer dereference within the mana_cleanup_port_context(), mana_destroy_eq(), mana_destroy_txq() and mana_destroy_rxq() functions in drivers/net/ethernet/microsoft/mana/mana_en.c, within the debugfs_remove_recursive(), mana_gd_remove(), mana_gd_shutdown(), mana_driver_init() and mana_driver_exit() functions in drivers/net/ethernet/microsoft/mana/gdma_main.c. A local user can perform a denial of service (DoS) attack.


Remediation

Install update from vendor's website.

References