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

[Steffan Baron <sbaron () open-source-consultants de>]

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
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>                                            http://security.gentoo.org/
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>  Severity: High
>     Title: OpenSSL: Remote execution of arbitrary code
>      Date: October 27, 2007
>   Updated: October 30, 2007
>      Bugs: #195634
>        ID: 200710-30:02
>
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> 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 () gentoo 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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