SB2023110656 - SUSE update for the Linux Kernel
Published: November 6, 2023
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 4 secuirty vulnerabilities.
1) Division by zero (CVE-ID: CVE-2023-31085)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a divide by zero error within the drivers/mtd/ubi/cdev.c driver. A local user can perform a denial of service (DoS) attack.
2) Deadlock (CVE-ID: CVE-2023-34324)
The vulnerability allows a malicious guest to perform a denial of service (DoS) attack.
The vulnerability exists due to improper event handling in Linux kernel. A malicious guest can disable paravirtualized device to cause a deadlock in a backend domain (other than dom0).
3) Out-of-bounds read (CVE-ID: CVE-2023-39189)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary condition within the nfnl_osf_add_callback() function in Linux kernel Netfilter. A local user with CAP_NET_ADMIN capability can trigger an out-of-bounds read error and execute arbitrary code with elevated privileges.
4) Allocation of Resources Without Limits or Throttling (CVE-ID: CVE-2023-45862)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error within the ENE UB6250 reader driver in drivers/usb/storage/ene_ub6250.c. A local user can trigger a boundary error and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.