SB2025080525 - Ubuntu update for linux-azure
Published: August 5, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 10 secuirty vulnerabilities.
1) Input validation error (CVE-ID: CVE-2025-37797)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper input validation within the hfsc_change_class() function in net/sched/sch_hfsc.c. A local user can perform a denial of service (DoS) attack.
2) Memory leak (CVE-ID: CVE-2024-56748)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the qedf_alloc_and_init_sb() function in drivers/scsi/qedf/qedf_main.c. A local user can perform a denial of service (DoS) attack.
3) Use-after-free (CVE-ID: CVE-2024-53239)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the usb6fire_chip_abort(), usb6fire_chip_destroy(), usb6fire_chip_probe() and usb6fire_chip_disconnect() functions in sound/usb/6fire/chip.c. A local user can escalate privileges on the system.
4) Use-after-free (CVE-ID: CVE-2024-50073)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the gsm_cleanup_mux() function in drivers/tty/n_gsm.c. A local user can escalate privileges on the system.
5) Use-after-free (CVE-ID: CVE-2024-49950)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the l2cap_connect_req() function in net/bluetooth/l2cap_core.c, within the hci_remote_features_evt() function in net/bluetooth/hci_event.c, within the hci_acldata_packet() function in net/bluetooth/hci_core.c. A local user can escalate privileges on the system.
6) Use-after-free (CVE-ID: CVE-2024-49883)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the fs/ext4/extents.c. A local user can escalate privileges on the system.
7) Buffer overflow (CVE-ID: CVE-2024-38541)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to memory corruption within the of_modalias() function in drivers/of/module.c. A local user can escalate privileges on the system.
8) Use-after-free (CVE-ID: CVE-2023-52975)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the EXPORT_SYMBOL_GPL() and iscsi_session_teardown() functions in drivers/scsi/libiscsi.c, within the iscsi_sw_tcp_session_destroy() function in drivers/scsi/iscsi_tcp.c. A local user can escalate privileges on the system.
9) Use-after-free (CVE-ID: CVE-2023-52885)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the svc_tcp_listen_data_ready() function in net/sunrpc/svcsock.c. A local user can escalate privileges on the system.
10) Use-after-free (CVE-ID: CVE-2023-52757)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the alloc_mid() function in fs/smb/client/transport.c, within the __smb2_handle_cancelled_cmd() function in fs/smb/client/smb2misc.c, within the cifs_compose_mount_options(), __release_mid() and cifs_get_tcon_super() functions in fs/smb/client/cifsproto.h. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.