SB2023083106 - Fedora 38 update for kernel
Published: August 31, 2023
Security Bulletin ID
SB2023083106
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) Use-after-free (CVE-ID: CVE-2023-4563)
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 nft_verdict_dump() function of the nftables sub-component. A local user can trigger a race condition between set GC and transaction and perform a DoS attack.
Remediation
Install update from vendor's website.