Net-SNMP up to 5.9.3 UDP Packet ip_scalars.c handle_ipDefaultTTL denial of service

Summaryinfo

A vulnerability categorized as problematic has been discovered in Net-SNMP up to 5.9.3. This vulnerability affects the function handle_ipDefaultTTL of the file agent/mibgroup/ip-mib/ip_scalars.c of the component UDP Packet Handler. The manipulation results in denial of service. This vulnerability was named CVE-2022-44792. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in Net-SNMP up to 5.9.3 (Network Management Software). It has been classified as problematic. Affected is the function handle_ipDefaultTTL of the file agent/mibgroup/ip-mib/ip_scalars.c of the component UDP Packet Handler. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. CVE summarizes:

handle_ipDefaultTTL in agent/mibgroup/ip-mib/ip_scalars.c in Net-SNMP 5.8 through 5.9.3 has a NULL Pointer Exception bug that can be used by a remote attacker (who has write access) to cause the instance to crash via a crafted UDP packet, resulting in Denial of Service.

The weakness was presented 11/07/2022 as 474. The advisory is available at github.com. This vulnerability is traded as CVE-2022-44792 since 11/07/2022. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 01/29/2026). This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 236750 (Alibaba Cloud Linux 3 : 0059: net-snmp (ALINUX3-SA-2023:0059)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (236750) and CERT Bund (WID-SEC-2022-1970). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

• Broadcom Fabric OS
• Debian Linux
• Red Hat Enterprise Linux
• Ubuntu Linux
• SUSE Linux
• Oracle Linux
• HPE Switch
• Broadcom Brocade Switch
• Open Source Net-SNMP
• Meinberg LANTIME

Productinfo

Type

• Network Management Software

Name

• Net-SNMP

Version

• 5.9.0
• 5.9.1
• 5.9.2
• 5.9.3

License

• open-source

Website

• Product: https://github.com/net-snmp/net-snmp/

CPE 2.3info

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CPE 2.2info

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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