Net-SNMP up to 5.9.1 OID nsVacmAccessTable null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Net-SNMP up to 5.9.1. The affected element is the function nsVacmAccessTable of the component OID Handler. This manipulation causes null pointer dereference. The identification of this vulnerability is CVE-2022-24809. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Net-SNMP up to 5.9.1 (Network Management Software) and classified as problematic. Affected by this vulnerability is the function nsVacmAccessTable of the component OID Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. The summary by CVE is:

net-snmp provides various tools relating to the Simple Network Management Protocol. Prior to version 5.9.2, a user with read-only credentials can use a malformed OID in a `GET-NEXT` to the `nsVacmAccessTable` to cause a NULL pointer dereference. Version 5.9.2 contains a patch. Users should use strong SNMPv3 credentials and avoid sharing the credentials. Those who must use SNMPv1 or SNMPv2c should use a complex community string and enhance the protection by restricting access to a given IP address range.

The weakness was shared 12/07/2023. It is possible to read the advisory at bugzilla.redhat.com. This vulnerability is known as CVE-2022-24809 since 02/10/2022. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 207850 (RHEL 9 : net-snmp (RHSA-2024:7260)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.9.2 eliminates this vulnerability. The upgrade is hosted for download at github.com.

The vulnerability is also documented in the vulnerability database at Tenable (207850). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.5

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CNA Base Score: 6.5
CNA Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 207850
Nessus Name: RHEL 9 : net-snmp (RHSA-2024:7260)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Net-SNMP 5.9.2

Timelineinfo

02/10/2022 🔍
12/07/2023 +665 days 🔍
12/07/2023 +0 days 🔍
01/18/2025 +408 days 🔍

Sourcesinfo

Advisory: bugzilla.redhat.com
Status: Confirmed

CVE: CVE-2022-24809 (🔍)
GCVE (CVE): GCVE-0-2022-24809
GCVE (VulDB): GCVE-100-247099

Entryinfo

Created: 12/07/2023 02:06
Updated: 01/18/2025 03:53
Changes: 12/07/2023 02:06 (41), 09/28/2024 00:32 (17), 01/18/2025 03:53 (22)
Complete: 🔍
Cache ID: 216::103

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

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