Executive Summary

Summary
Title ISC DHCP: Denial of Service
Informations
Name GLSA-201401-05 First vendor Publication 2014-01-06
Vendor Gentoo Last vendor Modification 2014-01-06
Severity (Vendor) Normal Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:H/Au:S/C:N/I:N/A:C)
Cvss Base Score 4.9 Attack Range Network
Cvss Impact Score 6.9 Attack Complexity High
Cvss Expoit Score 3.9 Authentication Requires single instance
Calculate full CVSS 2.0 Vectors scores

Detail

Synopsis

A memory exhaustion vulnerability in ISC DHCP could lead to Denial of Service.

Background

ISC DHCP is a Dynamic Host Configuration Protocol (DHCP) client/server.

Description

ISC DHCP is vulnerable to a memory exhaustion attack involving regular expressions sent by DHCP clients.

Impact

A remote attacker could send a specially crafted request from a malicious or spoofed client, potentially leading to a Denial of Service condition.

Workaround

There is no known workaround at this time.

Resolution

All ISC DHCP users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/dhcp-4.2.5_p1"

References

[ 1 ] CVE-2013-2494 : http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-2494

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-201401-05.xml

Original Source

Url : http://security.gentoo.org/glsa/glsa-201401-05.xml

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-119 Failure to Constrain Operations within the Bounds of a Memory Buffer

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 19

Nessus® Vulnerability Scanner

Date Description
2014-01-07 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201401-05.nasl - Type : ACT_GATHER_INFO
2013-04-20 Name : The remote Mandriva Linux host is missing one or more security updates.
File : mandriva_MDVSA-2013-059.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
Date Informations
2014-02-17 11:38:01
  • Multiple Updates
2014-01-07 00:18:15
  • First insertion