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Gentoo Linux Security Advisory                           GLSA 200710-06
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                                            https://security.gentoo.org/
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  Severity: High
     Title: OpenSSL: Multiple vulnerabilities
      Date: October 07, 2007
      Bugs: #188799, #194039
        ID: 200710-06

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Synopsis
=======
A buffer underflow vulnerability and an information disclosure
vulnerability have been discovered in OpenSSL.

Background
=========
OpenSSL is an implementation of the Secure Socket Layer and Transport
Layer Security protocols.

Affected packages
================
    -------------------------------------------------------------------
     Package           /   Vulnerable   /                   Unaffected
    -------------------------------------------------------------------
  1  dev-libs/openssl      < 0.9.8e-r3                    >= 0.9.8e-r3

Description
==========
Moritz Jodeit reported an off-by-one error in the
SSL_get_shared_ciphers() function, resulting from an incomplete fix of
CVE-2006-3738. A flaw has also been reported in the
BN_from_montgomery() function in crypto/bn/bn_mont.c when performing
Montgomery multiplication.

Impact
=====
A remote attacker sending a specially crafted packet to an application
relying on OpenSSL could possibly execute arbitrary code with the
privileges of the user running the application. A local attacker could
perform a side channel attack to retrieve the RSA private keys.

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-0.9.8e-r3"

References
=========
  [ 1 ] CVE-2006-3738
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3738
  [ 2 ] CVE-2007-3108
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3108
  [ 3 ] CVE-2007-5135
        http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5135

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

  https://security.gentoo.org/glsa/200710-06

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/.

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.

https://creativecommons.org/licenses/by-sa/2.5/
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Gentoo: GLSA-200710-06: OpenSSL: Multiple vulnerabilities

A buffer underflow vulnerability and an information disclosure vulnerability have been discovered in OpenSSL.

Summary

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Gentoo Linux Security Advisory                           GLSA 200710-06
                                            https://security.gentoo.org/

Severity: High Title: OpenSSL: Multiple vulnerabilities Date: October 07, 2007 Bugs: #188799, #194039 ID: 200710-06

Synopsis ======= A buffer underflow vulnerability and an information disclosure vulnerability have been discovered in OpenSSL.
Background ========= OpenSSL is an implementation of the Secure Socket Layer and Transport Layer Security protocols.
Affected packages ================ ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-libs/openssl < 0.9.8e-r3 >= 0.9.8e-r3
========== Moritz Jodeit reported an off-by-one error in the SSL_get_shared_ciphers() function, resulting from an incomplete fix of CVE-2006-3738. A flaw has also been reported in the BN_from_montgomery() function in crypto/bn/bn_mont.c when performing Montgomery multiplication.
Impact ===== A remote attacker sending a specially crafted packet to an application relying on OpenSSL could possibly execute arbitrary code with the privileges of the user running the application. A local attacker could perform a side channel attack to retrieve the RSA private keys.
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-0.9.8e-r3"
References ========= [ 1 ] CVE-2006-3738 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3738 [ 2 ] CVE-2007-3108 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3108 [ 3 ] CVE-2007-5135 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5135
Availability =========== This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
https://security.gentoo.org/glsa/200710-06
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/.
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.
https://creativecommons.org/licenses/by-sa/2.5/ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (GNU/Linux) Comment: Using GnuPG with Mozilla - iD8DBQFHCVBmuhJ+ozIKI5gRAv3NAKCdKfDMXmkNVek/nWT35KbBt4IjggCfRqe7 jH09QwZEvD8+yZD02L7xMjQ=jbkz -----END PGP SIGNATURE-----

Resolution

References

Availability

Concerns

Severity

Synopsis

Background

Affected Packages

Impact

Workaround

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