SB2023030321 - Ubuntu update for linux-oem-6.0
Published: March 3, 2023 Updated: October 17, 2024
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 9 secuirty vulnerabilities.
1) Race condition (CVE-ID: CVE-2022-3567)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a race condition within the inet6_stream_ops() and inet6_dgram_ops() functions. A local user can exploit the race and escalate privileges on the system.
2) 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.
3) Use-after-free (CVE-ID: CVE-2022-4379)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a use-after-free error within the __nfs42_ssc_open() function in fs/nfs/nfs4file.c. A remote attacker can perform a denial of service (DoS) attack.
4) 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.
5) 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.
6) Out-of-bounds read (CVE-ID: CVE-2022-47520)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary condition within the drivers/net/wireless/microchip/wilc1000/hif.c in the WILC1000 wireless driver. A local user can trigger an out-of-bounds read when parsing a Robust Security Network (RSN) information element from a Netlink packet and perform a denial of service (DoS) attack.
7) Security features bypass (CVE-ID: CVE-2023-0045)
The vulnerability allows a local user to bypass implemented security restrictions.
The vulnerability exists due to Linux kernel does not correctly mitigate SMT attacks. A local user can bypass Spectre-BTI user space mitigations and gain access to sensitive information.
8) Use-after-free (CVE-ID: CVE-2023-0461)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the Upper Level Protocol (ULP) subsystem in Linux kernel caused by improper handling of sockets entering the LISTEN state in certain protocols. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.
9) Use-after-free (CVE-ID: CVE-2023-0469)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a use-after-free error during the cleanup call within the io_install_fixed_file() function in io_uring/filetable.c. A local user can trigger a use-after-free error and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.