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Scientific Linux Security Update : dhcp on SL7.x x86_64 (20161103)

medium Nessus Plugin ID 95836

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Synopsis

The remote Scientific Linux host is missing one or more security updates.

Description

Security Fix(es) :

 - A resource-consumption flaw was discovered in the DHCP server. dhcpd did not restrict the number of open connections to OMAPI and failover ports. A remote attacker able to establish TCP connections to one of these ports could use this flaw to cause dhcpd to exit unexpectedly, stop responding requests, or exhaust system sockets (denial of service). (CVE-2016-2774)

Additional Changes :

Solution

Update the affected packages.

See Also

http://www.nessus.org/u?278f156b

Plugin Details

Severity: Medium

ID: 95836

File Name: sl_20161103_dhcp_on_SL7_x.nasl

Version: 3.7

Type: local

Agent: unix

Published: 12/15/2016

Updated: 1/14/2026

Supported Sensors: Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: High

Base Score: 7.1

Temporal Score: 5.3

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

CVSS Score Source: CVE-2016-2774

CVSS v3

Risk Factor: Medium

Base Score: 5.9

Temporal Score: 5.2

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

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

Vulnerability Information

CPE: p-cpe:/a:fermilab:scientific_linux:dhclient, p-cpe:/a:fermilab:scientific_linux:dhcp-libs, x-cpe:/o:fermilab:scientific_linux, p-cpe:/a:fermilab:scientific_linux:dhcp-debuginfo, p-cpe:/a:fermilab:scientific_linux:dhcp-devel, p-cpe:/a:fermilab:scientific_linux:dhcp, p-cpe:/a:fermilab:scientific_linux:dhcp-common

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: 11/3/2016

Vulnerability Publication Date: 3/9/2016

Reference Information

CVE: CVE-2016-2774