SB2023121398 - SUSE update for the Linux Kernel
Published: December 13, 2023
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 12 secuirty vulnerabilities.
1) Race condition (CVE-ID: CVE-2023-2006)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a race condition within the processing of RxRPC bundles in net/rxrpc/ar-internal.h. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.
2) Improper access control (CVE-ID: CVE-2023-25775)
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to improper access restrictions in the Intel Ethernet Controller RDMA driver for Linux. A remote non-authenticated attacker can bypass implemented security restrictions and gain access to sensitive information.
3) Out-of-bounds read (CVE-ID: CVE-2023-39197)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition within the Netfilter Connection Tracking (conntrack) in the Linux kernel in the nf_conntrack_dccp_packet() function in net/netfilter/nf_conntrack_proto_dccp.c. A remote attacker can send specially crafted DCCP packets to the system, trigger an out-of-bounds read error and read contents of memory on the system.
4) Use-after-free (CVE-ID: CVE-2023-39198)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the QXL driver in the Linux kernel. A local privileged user can trigger a use-after-free error and escalate privileges on the system.
5) Use-after-free (CVE-ID: CVE-2023-4244)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the Linux kernel netfilter: nf_tables component. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.
6) Out-of-bounds write (CVE-ID: CVE-2023-45863)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within the fill_kobj_path() function in lib/kobject.c. A local user can can trigger an out-of-bounds write and execute arbitrary code with elevated privileges.
7) Buffer overflow (CVE-ID: CVE-2023-45871)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error within the IGB driver in drivers/net/ethernet/intel/igb/igb_main.c when handling frames larger than the MTU. A remote attacker can send specially crafted traffic to the system, trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
8) NULL pointer dereference (CVE-ID: CVE-2023-46862)
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 io_uring_show_fdinfo() function in io_uring/fdinfo.c. A local user can trigger a race with SQ thread exit and perform a denial of service (DoS) attack.
9) Input validation error (CVE-ID: CVE-2023-5158)
The vulnerability allows a malicious guest to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input within the vringh_kiov_advance() function in drivers/vhost/vringh.c in the host side of a virtio ring. A malicious guest can crash the host OS via zero length descriptor.
10) Out-of-bounds write (CVE-ID: CVE-2023-5717)
The vulnerability local user to escalate privileges on the system.
The vulnerability exists due to a boundary error in the Linux kernel's Linux Kernel Performance Events (perf) component. A local user can trigger an out-of-bounds write and execute arbitrary code with elevated privileges.
11) Use-after-free (CVE-ID: CVE-2023-6039)
The vulnerability allows a local user to perform a denial of service (DoS) atack.
The vulnerability exists due to a use-after-free error within the lan78xx_disconnect() function in drivers/net/usb/lan78xx.c. A local user can trigger a use-after-free error and crash the kernel.
12) NULL pointer dereference (CVE-ID: CVE-2023-6176)
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 API for the cryptographic algorithm scatterwalk functionality in scatterwalk_copychunks(). A local user can send a malicious packet with specific socket configuration and crash the OS kernel.
Remediation
Install update from vendor's website.