SB2023030343 - Ubuntu update for linux-bluefield
Published: March 3, 2023
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 11 secuirty vulnerabilities.
1) Buffer overflow (CVE-ID: CVE-2022-3628)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within the brcmf_fweh_event_worker() function in drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c. A local user can use a specially crafted device to trigger memory corruption and escalate privileges on the system.
2) Use-after-free (CVE-ID: CVE-2022-3640)
The vulnerability allows an attacker to compromise the affected system.
The vulnerability exists due to a use-after-free error in the 2cap_conn_del() function in net/bluetooth/l2cap_core.c in Linux kernel. An attacker with physical proximity to device can trigger a use-after-free error and execute arbitrary code on the system.
3) Input validation error (CVE-ID: CVE-2022-3643)
The vulnerability allows an attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of network packets. An attacker with access to the guest OS can trigger the related physical NIC on the host to reset, abort, or crash by sending certain kinds of packets.
4) Use-after-free (CVE-ID: CVE-2022-3649)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error within the nilfs2 filesystem driver in nilfs_new_inode() function in fs/nilfs2/inode.c in Linux kernel. A remote attacker can trick the victim into mounting a specially crafted image, trigger a use-after-free error and execute arbitrary code on the system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
5) Race condition (CVE-ID: CVE-2022-41849)
The vulnerability allows an attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a race condition in the drivers/video/fbdev/smscufx.c in the Linux kernel. An attacker with physical proximity to the system can remove the USB device while calling open(), cause a race condition between the ufx_ops_open and ufx_usb_disconnect and perform a denial of service (DoS) attack.
6) Race condition (CVE-ID: CVE-2022-41850)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a race condition within the roccat_report_event() function in drivers/hid/hid-roccat.c. A local user can trigger a use-after-free error and perform a denial of service (DoS) attack.
7) Access of Uninitialized Pointer (CVE-ID: CVE-2022-42895)
The vulnerability allows an attacker to gain access to sensitive information.
The vulnerability exists due to unauthorized access of uninitialized pointer within the l2cap_parse_conf_req() function in net/bluetooth/l2cap_core.c. An attacker with physical proximity to the affected device can gain access to sensitive information.
8) Use-after-free (CVE-ID: CVE-2022-42896)
The vulnerability allows an attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error within the l2cap_connect() and l2cap_le_connect_req() function in net/bluetooth/l2cap_core.c. An attacker with physical proximity to the affected device can trigger a use-after-free error and execute arbitrary code on the system.
9) Buffer overflow (CVE-ID: CVE-2022-43945)
The vulnerability allows a remote attacker to perform a denial of service attacl.
The vulnerability exists due to a boundary error within the Linux kernel NFSD implementation. A remote attacker can send the RPC message over TCP with garbage data added at the end of the message, trigger memory corruption and perform a denial of service (DoS) attack.
10) Integer overflow (CVE-ID: CVE-2022-45934)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to integer overflow within the l2cap_config_req() function in net/bluetooth/l2cap_core.c in Linux kernel. A local user can pass specially crafted L2CAP_CONF_REQ packets to the device, trigger an integer overflow and execute arbitrary code with elevated privileges.
11) Use-after-free (CVE-ID: CVE-2023-20928)
The vulnerability allows a local application to escalate privileges on the system.
The vulnerability exists due to a use-after-free error in Binder driver. A local application can trigger a race condition and execute arbitrary code with elevated privileges.
Remediation
Install update from vendor's website.