bugtraq - Re: [gentoo-announce] [ GLSA 200710-30 ] OpenSSL: Remote execution of arbitrary code

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Message-ID: <20071030235300.GA24130@osc>
Date: Wed, 31 Oct 2007 00:53:00 +0100
From: Steffan Baron <sbaron@...n-source-consultants.de>
To: Pierre-Yves Rofes <py@...too.org>
Cc: gentoo-announce@...ts.gentoo.org,
	full-disclosure@...ts.grok.org.uk, bugtraq@...urityfocus.com,
	security-alerts@...uxsecurity.com
Subject: Re: [gentoo-announce] [ GLSA 200710-30 ] OpenSSL: Remote execution
	of arbitrary code


Sorry, but it seems that it is the other way around--vulnerable are
versions < 0.9.8f, unaffected versions >= 0.9.8f.

Gruß, Steffan



On Tue, Oct 30, 2007, Pierre-Yves Rofes wrote:
>
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>- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
>Gentoo Linux Security Advisory                        GLSA 200710-30:02
>- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
>                                            http://security.gentoo.org/
>- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
>
>  Severity: High
>     Title: OpenSSL: Remote execution of arbitrary code
>      Date: October 27, 2007
>   Updated: October 30, 2007
>      Bugs: #195634
>        ID: 200710-30:02
>
>- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
>
>Synopsis
>========
>
>OpenSSL contains a vulnerability allowing execution of arbitrary code
>or a Denial of Service.
>
>Background
>==========
>
>OpenSSL is an Open Source toolkit implementing the Secure Sockets Layer
>(SSL v2/v3) and Transport Layer Security (TLS v1) as well as a general
>purpose cryptography library.
>
>Affected packages
>=================
>
>    -------------------------------------------------------------------
>     Package           /  Vulnerable  /                     Unaffected
>    -------------------------------------------------------------------
>  1  dev-libs/openssl      >= 0.9.8f                          < 0.9.8f
>
>Description
>===========
>
>Andy Polyakov reported a vulnerability in the OpenSSL toolkit, that is
>caused due to an unspecified off-by-one error within the DTLS
>implementation.
>
>Impact
>======
>
>A remote attacker could exploit this issue to execute arbitrary code or
>cause a Denial of Service. Only clients and servers explicitly using
>DTLS are affected, systems using SSL and TLS are not.
>
>Workaround
>==========
>
>There is no known workaround at this time.
>
>Resolution
>==========
>
>All OpenSSL users should upgrade to the latest version:
>
>    # emerge --sync
>    # emerge --ask --oneshot --verbose ">=dev-libs/openssl-0.9.8f"
>
>References
>==========
>
>  [ 1 ] CVE-2007-4995
>        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-4995
>
>Availability
>============
>
>This GLSA and any updates to it are available for viewing at
>the Gentoo Security Website:
>
>  http://security.gentoo.org/glsa/glsa-200710-30.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@...too.org or alternatively, you may file a bug at
>http://bugs.gentoo.org.
>
>License
>=======
>
>Copyright 2007 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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>gentoo-announce@...too.org mailing list

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