RHEL 7 : net-snmp (RHSA-2020:2539)

high Nessus Plugin ID 137413

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Synopsis

The remote Red Hat host is missing a security update for net-snmp.

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2020:2539 advisory.

The net-snmp packages provide various libraries and tools for the Simple Network Management Protocol (SNMP), including an SNMP library, an extensible agent, tools for requesting or setting information from SNMP agents, tools for generating and handling SNMP traps, a version of the netstat command which uses SNMP, and a Tk/Perl Management Information Base (MIB) browser.

Security Fix(es):

* net-snmp: NULL pointer exception in snmp_oid_compare in snmplib/snmp_api.c resulting in a denial of service (CVE-2018-18066)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

* snmpd crashes due to double-free when freeing security context (BZ#1812938)

* net-snmp memory leak (BZ#1832223)

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL net-snmp package based on the guidance in RHSA-2020:2539.

Plugin Details

Severity: High

ID: 137413

File Name: redhat-RHSA-2020-2539.nasl

Version: 1.12

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 6/17/2020

Updated: 11/8/2024

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2018-18066

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:net-snmp-agent-libs, p-cpe:/a:redhat:enterprise_linux:net-snmp-perl, p-cpe:/a:redhat:enterprise_linux:net-snmp-devel, p-cpe:/a:redhat:enterprise_linux:net-snmp-gui, cpe:/o:redhat:rhel_eus:7.7, p-cpe:/a:redhat:enterprise_linux:net-snmp-utils, p-cpe:/a:redhat:enterprise_linux:net-snmp-libs, p-cpe:/a:redhat:enterprise_linux:net-snmp-python, p-cpe:/a:redhat:enterprise_linux:net-snmp, p-cpe:/a:redhat:enterprise_linux:net-snmp-sysvinit

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/12/2020

Vulnerability Publication Date: 10/8/2018

Reference Information

CVE: CVE-2018-18066

CWE: 476

RHSA: 2020:2539

Detections

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