SB2025073177 - Ubuntu update for linux-fips
Published: July 31, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 5 secuirty vulnerabilities.
1) 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.
2) 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.
3) 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.
4) 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.
5) 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.
Remediation
Install update from vendor's website.