SB2023051054 - SUSE update for the Linux Kernel
Published: May 10, 2023 Updated: June 17, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 13 secuirty vulnerabilities.
1) Improper Initialization (CVE-ID: CVE-2022-2196)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to improper initialization within nVMX in Linux kernel. A local user can perform speculative execution attacks and escalate privileges on the system.
2) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2023-0386)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to unauthorized access to execution of setuid files in OverlayFS subsystem when copying a capable file from a nosuid mount into another mount. A local user can execute arbitrary code with root privileges.
3) Use-after-free (CVE-ID: CVE-2023-1670)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the Xircom 16-bit PCMCIA (PC-card) Ethernet driver. A local user can trigger a use-after-free error and execute arbitrary code on the system.
4) Use-after-free (CVE-ID: CVE-2023-1855)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the xgene_hwmon_remove() function in drivers/hwmon/xgene-hwmon.c in the Hardware Monitoring Linux Kernel Driver (xgene-hwmon). A local user can trigger a use-after-free error and execute arbitrary code on the system.
5) 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.
6) Use-after-free (CVE-ID: CVE-2023-1990)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a use-after-free error within the ndlc_remove() function in drivers/nfc/st-nci/ndlc.c. A local user can trigger a use-after-free error and perform a denial of service (DoS) attack.
7) Security features bypass (CVE-ID: CVE-2023-1998)
The vulnerability allows a local user to bypass implemented security restrictions.
The vulnerability exists due to incorrect implementation of the Spectre v2 SMT mitigations, related to calling prctl with PR_SET_SPECULATION_CTRL. An attacker can gain unauthorized access to kernel memory from userspace.
8) Improper validation of array index (CVE-ID: CVE-2023-2008)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to incorrect validation of array index within a fault handler in drivers/dma-buf/udmabuf.c. A local privileged user can execute arbitrary code with kernel privileges.
9) Improper update of reference count (CVE-ID: CVE-2023-2019)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper update of reference count within the scheduling of events in drivers/net/netdevsim/fib.c. A local privileged user can perform a denial of service (DoS) attack.
10) Out-of-bounds read (CVE-ID: CVE-2023-2176)
The vulnerability allows a local user to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition within the compare_netdev_and_ip() function in drivers/infiniband/core/cma.c in RDMA in the Linux Kernel. A local user can trigger an out-of-bounds read error and read contents of memory on the system.
11) Use-after-free (CVE-ID: CVE-2023-2235)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error in the Linux Kernel Performance Events system. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.
12) NULL pointer dereference (CVE-ID: CVE-2023-23006)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error within the mlx5_get_uars_page() function in drivers/net/ethernet/mellanox/mlx5/core/steering/dr_domain.c. A local user can pass specially crafted data to the systen and perform a denial of service (DoS) attack.
13) Race condition (CVE-ID: CVE-2023-30772)
The vulnerability allows an attacker to compromise the affected system.
The vulnerability exists due to a race condition in rivers/power/supply/da9150-charger.c in Linux kernel. An attacker with physical access to device can trigger a race condition while unplugin the device and execute arbitrary code on the system.
Remediation
Install update from vendor's website.