SB2023071426 - Ubuntu update for linux-oem-6.1
Published: July 14, 2023
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 5 secuirty vulnerabilities.
1) Out-of-bounds read (CVE-ID: CVE-2023-2124)
The vulnerability allows a local user to perform a denial of service (DoS) attack..
The vulnerability exists due to a boundary condition within the XFS subsystem in Linux kernel. A local user can trigger an out-of-bounds read error and crash the kernel.
2) Out-of-bounds write (CVE-ID: CVE-2023-3090)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within the ipvlan network driver in Linux kernel. A local user can trigger an out-of-bounds write and execute arbitrary code with elevated privileges.
3) Deadlock (CVE-ID: CVE-2023-31084)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a deadlock in drivers/media/dvb-core/dvb_frontend.c when a task is in !TASK_RUNNING. A local user can trigger a deadlock and crash the kernel.
4) Use-after-free (CVE-ID: CVE-2023-3141)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the r592_remove() function of drivers/memstick/host/r592.c in media access in the Linux kernel. A local user can trigger a use-after-free error and escalate privileges on the system.
5) NULL pointer dereference (CVE-ID: CVE-2023-3212)
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 gfs2 file system in the Linux kernel. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.