CentOS 6 / 7 : net-snmp (CESA-2015:1636)

critical Nessus Plugin ID 85464

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Synopsis

The remote CentOS host is missing one or more security updates.

Description

Updated net-snmp packages that fix one security issue are now available for Red Hat Enterprise Linux 6 and 7.

Red Hat Product Security has rated this update as having Moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section.

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.

Solution

Update the affected net-snmp packages.

Plugin Details

Severity: Critical

ID: 85464

File Name: centos_RHSA-2015-1636.nasl

Version: 2.9

Type: local

Agent: unix

Family: CentOS Local Security Checks

Published: 8/18/2015

Updated: 1/4/2021

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2015-5621

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:centos:centos:7, p-cpe:/a:centos:centos:net-snmp-agent-libs, p-cpe:/a:centos:centos:net-snmp-libs, p-cpe:/a:centos:centos:net-snmp-python, p-cpe:/a:centos:centos:net-snmp-utils, cpe:/o:centos:centos:6, p-cpe:/a:centos:centos:net-snmp, p-cpe:/a:centos:centos:net-snmp-devel, p-cpe:/a:centos:centos:net-snmp-gui, p-cpe:/a:centos:centos:net-snmp-perl, p-cpe:/a:centos:centos:net-snmp-sysvinit

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

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

RHSA: 2015:1636

Detections

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