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Debian DSA-2551-1 : isc-dhcp - denial of service

high Nessus Plugin ID 62225

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Synopsis

The remote Debian host is missing a security-related update.

Description

Glen Eustace discovered that the ISC DHCP server, a server for automatic IP address assignment, is not properly handling changes in the expiration times of a lease. An attacker may use this flaw to crash the service and cause denial of service conditions, by reducing the expiration time of an active IPv6 lease.

Solution

Upgrade the isc-dhcp packages.

For the stable distribution (squeeze), this problem has been fixed in version 4.1.1-P1-15+squeeze8.

See Also

https://packages.debian.org/source/squeeze/isc-dhcp

https://www.debian.org/security/2012/dsa-2551

Plugin Details

Severity: High

ID: 62225

File Name: debian_DSA-2551.nasl

Version: 1.15

Type: local

Agent: unix

Published: 9/24/2012

Updated: 1/11/2021

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:isc-dhcp, cpe:/o:debian:debian_linux:6.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 9/23/2012

Reference Information

CVE: CVE-2012-3955

BID: 55530

DSA: 2551