GLSA 201804-05: ISC DHCP: Multiple vulnerabilities

http://security.gentoo.org/

Severity:	normal
Title:	ISC DHCP: Multiple vulnerabilities
Date:	04/08/2018
Bugs:	#644708, #649010
ID:	201804-05

Synopsis

Multiple vulnerabilities have been found in ISC DHCP, the worst of which could allow for the remote execution of arbitrary code.

Background

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

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
net-misc/dhcp	< 4.3.6_p1	>= 4.3.6_p1	All supported architectures

Description

Multiple vulnerabilities have been discovered in ISC DHCP. Please review the CVE identifiers referenced below for details.

Impact

Remote attackers could execute arbitrary code, cause a Denial of Service condition, or have other unspecified impacts.

Workaround

There are no known workarounds at this time for CVE-2018-5732 or CVE-2018-5733.

In accordance with upstream documentation, the recommended workaround for CVE-2017-3144 is, “to disallow access to the OMAPI control port from unauthorized clients (in accordance with best practices for server operation).”

Resolution

All DHCP users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=net-misc/dhcp-4.3.6_p1"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-201804-05.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.