SB2025050738 - Ubuntu update for linux-azure
Published: May 7, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 vulnerabilities.
1) Use of uninitialized resource (CVE-ID: CVE-2025-21813)
CWE-ID: CWE-908 - Use of Uninitialized Resource
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
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)
CWE-ID: CWE-476 - NULL Pointer Dereference
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
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.