SB2023021676 - Denial of service in Linux kernel io_uring
Published: February 16, 2023
Security Bulletin ID
SB2023021676
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2023-0468)
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 io_poll_check_events() function in io_uring/poll.c within the io_uring subcomponent in the Linux Kernel. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.