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full-disclosure-uk: [Full-disclosure] [ GLSA 200808-05 ] ISC DHC

[Full-disclosure] [ GLSA 200808-05 ] ISC DHCP: Denial of Service

From: Tobias Heinlein <keytoaster_at_nospam>
Date: Wed Aug 06 2008 - 20:16:35 GMT
To: gentoo-announce@gentoo.org

  • - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 200808-05
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Severity: Normal Title: ISC DHCP: Denial of Service Date: August 06, 2008 Bugs: #227135 ID: 200808-05
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Synopsis


A Denial of Service vulnerability was discovered in ISC DHCP.

Background


ISC DHCP is ISC's reference implementation of all aspects of the Dynamic Host Configuration Protocol.

Affected packages



Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 net-misc/dhcp < 3.1.1 >= 3.1.1

Description


A buffer overflow error was found in ISC DHCP server, that can only be exploited under unusual server configurations where the DHCP server is configured to provide clients with a large set of DHCP options.

Impact


A remote attacker could exploit this vulnerability to cause a Denial of Service.

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-3.1.1"

References


  [ 1 ] CVE-2007-0062
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0062

Availability


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

  http://security.gentoo.org/glsa/glsa-200808-05.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 http://bugs.gentoo.org.

License


Copyright 2008 Gentoo Foundation, Inc; referenced text belongs to its owner(s).

The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.

http://creativecommons.org/licenses/by-sa/2.5



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