SB2023031655 - SUSE update for the Linux Kernel
Published: March 16, 2023 Updated: October 17, 2024
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 11 secuirty vulnerabilities.
1) Use-after-free (CVE-ID: CVE-2021-4203)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error in sock_getsockopt() function in net/core/sock.c due to SO_PEERCRED and SO_PEERGROUPS race with listen() function (and connect() function) in the Linux kernel. A local user can exploit the use-after-free error and crash the system or escalate privileges on the system.
2) Heap-based buffer overflow (CVE-ID: CVE-2022-2991)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within the LightNVM subsystem in Linux kernel. A local user can execute arbitrary code on the system with kernel privileges.
3) Out-of-bounds write (CVE-ID: CVE-2022-36280)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error within the vmw_kms_cursor_snoo() function in drivers/gpu/vmxgfx/vmxgfx_kms.c in vmwgfx VMWare driver. A local user can trigger an out-of-bounds write and perform a denial of service (DoS) attack.
4) NULL pointer dereference (CVE-ID: CVE-2022-38096)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in vmwgfx driver in drivers/gpu/vmxgfx/vmxgfx_execbuf.c in GPU component of Linux kernel with device file '/dev/dri/renderD128 (or Dxxx)'. A local user can perform a denial of service (DoS) attack.
5) NULL pointer dereference (CVE-ID: CVE-2022-4129)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in the Linux kernel's Layer 2 Tunneling Protocol (L2TP). A missing lock when clearing sk_user_data can lead to a race condition and NULL pointer dereference. A local user could use this flaw to potentially crash the system causing a denial of service.
6) 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.
7) Use-after-free (CVE-ID: CVE-2023-0590)
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 qdisc_graft() function in net/sched/sch_api.c. A local user can trigger a use-after-free error and crash the kernel.
8) Memory leak (CVE-ID: CVE-2023-0597)
The vulnerability allows a local user to gain access to sensitive information.
The vulnerability exists due to memory leak within the Linux kernel cpu_entry_area mapping of X86 CPU data. A local user can gain access to sensitive information.
9) Use-after-free (CVE-ID: CVE-2023-1118)
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 integrated infrared receiver/transceiver driver "drivers/media/rc/ene_ir.c" when detaching rc device. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.
10) Integer overflow (CVE-ID: CVE-2023-23559)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to integer overflow within the rndis_query_oid() function in drivers/net/wireless/rndis_wlan.c. A local user can trigger an integer overflow and execute arbitrary code with elevated privileges.
11) Double Free (CVE-ID: CVE-2023-26545)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a double free in net/mpls/af_mpls.c during the renaming of a device. A local user can trigger a double free error and execute arbitrary code with elevated privileges.
Remediation
Install update from vendor's website.