Net-SNMP up to 5.9.3 UDP Packet ip_scalars.c handle_ipv6IpForwarding denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Net-SNMP up to 5.9.3. This issue affects the function handle_ipv6IpForwarding of the file agent/mibgroup/ip-mib/ip_scalars.c of the component UDP Packet Handler. This manipulation causes denial of service. The identification of this vulnerability is CVE-2022-44793. It is possible to initiate the attack remotely. Furthermore, there is an exploit available.

Detailsinfo

A vulnerability was found in Net-SNMP up to 5.9.3 (Network Management Software). It has been declared as problematic. Affected by this vulnerability is the function handle_ipv6IpForwarding 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. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:

handle_ipv6IpForwarding in agent/mibgroup/ip-mib/ip_scalars.c in Net-SNMP 5.4.3 through 5.9.3 has a NULL Pointer Exception bug that can be used by a remote attacker to cause the instance to crash via a crafted UDP packet, resulting in Denial of Service.

The weakness was shared 11/07/2022 as 475. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2022-44793 since 11/07/2022. Technical details and also a public exploit are known. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

It is possible to download the exploit at gist.github.com. It is declared as proof-of-concept. 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 vulnerability database at Tenable (236750). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 236750
Nessus Name: Alibaba Cloud Linux 3 : 0059: net-snmp (ALINUX3-SA-2023:0059)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/07/2022 🔍
11/07/2022 +0 days 🔍
11/07/2022 +0 days 🔍
05/15/2025 +920 days 🔍

Sourcesinfo

Product: github.com

Advisory: 475
Status: Confirmed

CVE: CVE-2022-44793 (🔍)
GCVE (CVE): GCVE-0-2022-44793
GCVE (VulDB): GCVE-100-213019
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 11/07/2022 09:46
Updated: 05/15/2025 17:52
Changes: 11/07/2022 09:46 (44), 12/05/2022 08:07 (12), 05/15/2025 17:52 (16)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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