SB2024020810 - Local denial of service in Linux kernel netfilter
Published: February 8, 2024
Security Bulletin ID
SB2024020810
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) Memory leak (CVE-ID: CVE-2023-7192)
The vulnerability allows a local user to perform DoS attack on the target system.
The vulnerability exists due memory leak within the ctnetlink_create_conntrack() function in net/netfilter/nf_conntrack_netlink.c. A local user with CAP_NET_ADMIN privileges can perform denial of service attack.
Remediation
Install update from vendor's website.
References
- https://access.redhat.com/security/cve/CVE-2023-7192
- https://bugzilla.redhat.com/show_bug.cgi?id=2256279
- https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=ac4893980bbe79ce383daf9a0885666a30fe4c83
- https://access.redhat.com/errata/RHSA-2024:0723
- https://access.redhat.com/errata/RHSA-2024:0725