net-snmp up to 5.7 table_container.c _set_key UDP Packet null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability was found in net-snmp up to 5.7 and classified as problematic. The impacted element is the function _set_key of the file agent/helpers/table_container.c. Such manipulation as part of UDP Packet leads to null pointer dereference. This vulnerability is documented as CVE-2018-18065. The attack can be executed remotely. Additionally, an exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in net-snmp up to 5.7 (Network Management Software). Affected by this issue is the function _set_key of the file agent/helpers/table_container.c. The manipulation as part of a UDP Packet leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to 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. Impacted is availability. CVE summarizes:

_set_key in agent/helpers/table_container.c in Net-SNMP before 5.8 has a NULL Pointer Exception bug that can be used by an authenticated 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 released 10/08/2018 (Website). The advisory is available at dumpco.re. This vulnerability is handled as CVE-2018-18065 since 10/08/2018. The attack may be launched remotely. A simple authentication is needed for exploitation. Technical details as well as a public exploit are known.

The exploit is available at exploit-db.com. It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 118324 (Ubuntu 18.10 : net-snmp vulnerability (USN-3792-3)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 171872 (OpenSUSE Security Update for net-snmp (openSUSE-SU-2018:3508-1)).

Upgrading to version 5.8 eliminates this vulnerability. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (45547) and Tenable (118324). Entry connected to this vulnerability is available at VDB-125067. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.2

VulDB Base Score: 4.3
VulDB Temp Score: 3.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / 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: 118324
Nessus Name: Ubuntu 18.10 : net-snmp vulnerability (USN-3792-3)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: net-snmp 5.8
Patch: sourceforge.net

Timelineinfo

10/08/2018 🔍
10/08/2018 +0 days 🔍
10/08/2018 +0 days 🔍
10/08/2018 +0 days 🔍
10/09/2018 +1 days 🔍
10/22/2018 +13 days 🔍
10/23/2018 +1 days 🔍
11/30/2024 +2230 days 🔍

Sourcesinfo

Advisory: USN-3792-1
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-18065 (🔍)
GCVE (CVE): GCVE-0-2018-18065
GCVE (VulDB): GCVE-100-125066

OVAL: 🔍

SecurityFocus: 106265

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 10/09/2018 08:14
Updated: 11/30/2024 12:28
Changes: 10/09/2018 08:14 (76), 03/31/2020 16:55 (6), 05/23/2023 10:13 (6), 11/30/2024 12:28 (16)
Complete: 🔍
Cache ID: 216::103

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

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