net-snmp up to 5.7 snmplib/snmp_api.c UDP Packet null pointer dereference

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CVSS Meta Temp Score
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CTI Interest Score
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6.1$0-$5k0.00

A vulnerability, which was classified as problematic, was found in net-snmp up to 5.7 (Network Management Software). This affects an unknown code block in the library snmplib/snmp_api.c. The manipulation as part of a UDP Packet leads to a denial of service vulnerability. CWE is classifying the issue as CWE-476. This is going to have an impact on availability. The summary by CVE is:

snmp_oid_compare in snmplib/snmp_api.c in Net-SNMP before 5.8 has a NULL Pointer Exception bug that can be used by an unauthenticated attacker to remotely cause the instance to crash via a crafted UDP packet, resulting in Denial of Service.

The bug was discovered 10/08/2018. The weakness was disclosed 10/08/2018 (Website). It is possible to read the advisory at dumpco.re. This vulnerability is uniquely identified as CVE-2018-18066 since 10/08/2018. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 5.8 eliminates this vulnerability.

The entries 125066 and 143748 are pretty similar.

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CPE 2.3infoedit

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VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2infoedit

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

NVD Base Score: 🔍

Exploitinginfoedit

Class: Denial of service
CWE: CWE-476
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfoedit

Threat: 🔍
Adversaries: 🔍
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Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: net-snmp 5.8

Timelineinfoedit

10/08/2018 🔍
10/08/2018 +0 days 🔍
10/08/2018 +0 days 🔍
10/08/2018 +0 days 🔍
10/09/2018 +1 days 🔍
03/31/2020 +539 days 🔍

Sourcesinfoedit

Advisory: dumpco.re
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-18066 (🔍)
See also: 🔍

Entryinfoedit

Created: 10/09/2018 08:14 AM
Updated: 03/31/2020 04:58 PM
Changes: (2) vulnerability_discoverydate advisory_confirm_url
Complete: 🔍

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