CVE-2022-44793 : Security Advisory and Response

A NULL Pointer Exception bug in Net-SNMP versions 5.4.3 through 5.9.3 can lead to a Denial of Service attack by a remote threat actor. Learn about the impact, technical details, and mitigation steps below.

Understanding CVE-2022-44793

This section provides insights into the nature of the CVE-2022-44793 vulnerability.

What is CVE-2022-44793?

The CVE-2022-44793 vulnerability exists in the handle_ipv6IpForwarding function in Net-SNMP's ip-mib/ip_scalars.c file. It allows a remote attacker to crash the instance using a specially crafted UDP packet, thereby causing a Denial of Service (DoS) condition.

The Impact of CVE-2022-44793

The impact of this vulnerability is the potential for a remote threat actor to exploit the NULL Pointer Exception bug in affected versions of Net-SNMP. By sending a malicious UDP packet, an attacker can trigger a crash in the system, leading to a DoS condition.

Technical Details of CVE-2022-44793

Explore the technical specifics of the CVE-2022-44793 vulnerability in this section.

Vulnerability Description

The flaw in handle_ipv6IpForwarding can be exploited by an attacker to provoke a NULL Pointer Exception, resulting in a system crash.

Affected Systems and Versions

The vulnerability impacts Net-SNMP versions ranging from 5.4.3 to 5.9.3.

Exploitation Mechanism

Remote attackers can exploit this vulnerability by sending a carefully crafted UDP packet to the target system, causing it to crash and resulting in a denial of service.

Mitigation and Prevention

Discover the necessary steps to mitigate the risks associated with CVE-2022-44793 below.

Immediate Steps to Take

It is crucial to apply security patches or updates provided by Net-SNMP to address the vulnerability and prevent potential exploitation.

Long-Term Security Practices

Implement regular security updates and monitor emerging security advisories to protect your systems from known vulnerabilities.

Patching and Updates

Ensure that your Net-SNMP installation is up to date with the latest patches and security fixes to safeguard against CVE-2022-44793.