SB2023060656 - SUSE update for the Linux Kernel (Live Patch 28 for SLE 15 SP3)
Published: June 6, 2023
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 6 secuirty vulnerabilities.
1) 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.
2) Use-after-free (CVE-ID: CVE-2023-1281)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error in Linux kernel traffic control index filter (tcindex) when the tcf_exts_exec() function is called with the destroyed tcf_ext. A local user attacker can trigger a use-after-free error and execute arbitrary code with elevated privileges.
3) Use-after-free (CVE-ID: CVE-2023-1872)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the io_file_get_fixed function. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.
4) Use-after-free (CVE-ID: CVE-2023-1989)
The vulnerability allows a local user to escalate privileges on the system.
The
vulnerability exists due to a use-after-free error within the btsdio_remove() function in driversluetoothtsdio.c. A local user can trigger a
use-after-free error and escalate privileges on the system.
5) Use-after-free (CVE-ID: CVE-2023-2162)
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to a use-after-free error within the scsi_sw_tcp_session_create() function in drivers/scsi/iscsi_tcp.c in SCSI sub-component in the Linux Kernel. A local user can trigger a use-after-free error and gain access to sensitive information.
6) Double Free (CVE-ID: CVE-2023-28464)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within the hci_conn_cleanup() function in net/bluetooth/hci_conn.c in Linux kernel. A local user can trigger a double free error and execute arbitrary code with elevated privileges.
Remediation
Install update from vendor's website.