RHEL 6 / 7 : net-snmp (RHSA-2015:1636)

medium Nessus Plugin ID 85497

Synopsis

The remote Red Hat host is missing one or more security updates for net-snmp.

Description

The remote Redhat Enterprise Linux 6 / 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2015:1636 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.

It was discovered that the snmp_pdu_parse() function could leave incompletely parsed varBind variables in the list of variables. A remote, unauthenticated attacker could use this flaw to crash snmpd or, potentially, execute arbitrary code on the system with the privileges of the user running snmpd. (CVE-2015-5621)

Red Hat would like to thank Qinghao Tang of QIHU 360 company, China for reporting this issue.

All net-snmp users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue.

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

Note that Nessus has not tested for these issues 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-2015:1636.

See Also

http://www.nessus.org/u?83aebea1

https://access.redhat.com/errata/RHSA-2015:1636

https://access.redhat.com/security/updates/classification/#moderate

https://bugzilla.redhat.com/show_bug.cgi?id=1212408

Plugin Details

Severity: Medium

ID: 85497

File Name: redhat-RHSA-2015-1636.nasl

Version: 2.15

Type: local

Agent: unix

Published: 8/18/2015

Updated: 3/20/2025

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

Vendor

Vendor Severity: Moderate

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.9

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

CVSS Score Source: CVE-2018-1000116

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

CVSS v4

Risk Factor: Medium

Base Score: 4.8

Threat Score: 1.9

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

CVSS Score Source: CVE-2015-5621

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, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:net-snmp-gui, cpe:/o:redhat:enterprise_linux:6, 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 Ease: No known exploits are available

Patch Publication Date: 8/17/2015

Vulnerability Publication Date: 8/19/2015

Reference Information

CVE: CVE-2015-5621, CVE-2018-1000116

CWE: 20, 665

RHSA: 2015:1636