Executive Summary

Summary
Title dhcpcd: Multiple vulnerabilities
Informations
Name GLSA-201606-07 First vendor Publication 2016-06-18
Vendor Gentoo Last vendor Modification 2016-06-18
Severity (Vendor) N/A 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:L/Au:N/C:C/I:C/A:C)
Cvss Base Score 10 Attack Range Network
Cvss Impact Score 10 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Synopsis

Multiple vulnerabilities have been found in dhcpcd allowing remote attackers to possibly execute arbitrary code or cause a Denial of Service.

Background

A fully featured, yet light weight RFC2131 compliant DHCP client

Description

A heap overflow can be trigged via malformed DHCP responses in the print_option (via dhcp_envoption1) due to incorrect option length values. These vulnerabilities could also allow remote attackers to trigger an invalid read/crash via malformed DHCP responses.

Impact

Remote attackers could possibly execute arbitrary code with the privileges of the process or cause Denial of Service.

Workaround

There is no known workaround at this time.

Resolution

All dhcpcd users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/dhcpcd-6.10.0â€

References

[ 1 ] CVE-2016-1503 : http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-1503
[ 2 ] CVE-2016-1504 : http://nvd.nist.gov/nvd.cfm?cvename=CVE-2016-1504

Availability

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

https://security.gentoo.org/glsa/201606-07

Original Source

Url : http://security.gentoo.org/glsa/glsa-201606-07.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 127
Os 22

Nessus® Vulnerability Scanner

Date Description
2016-06-20 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201606-07.nasl - Type : ACT_GATHER_INFO
2016-01-08 Name : The remote FreeBSD host is missing a security-related update.
File : freebsd_pkg_df587aa2b5a511e59728002590263bf5.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
2
Date Informations
2017-02-14 09:26:14
  • Multiple Updates
2016-06-21 13:28:24
  • Multiple Updates
2016-06-18 21:25:27
  • First insertion