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Gentoo Linux Security Advisory GLSA 200710-06 |
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http://security.gentoo.org/ |
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|
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Severity: High |
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Title: OpenSSL: Multiple vulnerabilities |
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Date: October 07, 2007 |
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Bugs: #188799, #194039 |
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ID: 200710-06 |
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|
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Synopsis |
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======== |
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|
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A buffer underflow vulnerability and an information disclosure |
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vulnerability have been discovered in OpenSSL. |
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|
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Background |
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========== |
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|
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OpenSSL is an implementation of the Secure Socket Layer and Transport |
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Layer Security protocols. |
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|
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Affected packages |
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================= |
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|
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------------------------------------------------------------------- |
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Package / Vulnerable / Unaffected |
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------------------------------------------------------------------- |
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1 dev-libs/openssl < 0.9.8e-r3 >= 0.9.8e-r3 |
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|
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Description |
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=========== |
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|
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Moritz Jodeit reported an off-by-one error in the |
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SSL_get_shared_ciphers() function, resulting from an incomplete fix of |
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CVE-2006-3738. A flaw has also been reported in the |
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BN_from_montgomery() function in crypto/bn/bn_mont.c when performing |
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Montgomery multiplication. |
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|
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Impact |
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====== |
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|
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A remote attacker sending a specially crafted packet to an application |
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relying on OpenSSL could possibly execute arbitrary code with the |
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privileges of the user running the application. A local attacker could |
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perform a side channel attack to retrieve the RSA private keys. |
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|
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Workaround |
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========== |
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|
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There is no known workaround at this time. |
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|
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Resolution |
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========== |
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|
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All OpenSSL users should upgrade to the latest version: |
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|
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# emerge --sync |
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# emerge --ask --oneshot --verbose ">=dev-libs/openssl-0.9.8e-r3" |
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|
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References |
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========== |
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|
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[ 1 ] CVE-2006-3738 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-3738 |
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[ 2 ] CVE-2007-3108 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3108 |
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[ 3 ] CVE-2007-5135 |
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http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5135 |
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|
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Availability |
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============ |
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|
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This GLSA and any updates to it are available for viewing at |
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the Gentoo Security Website: |
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|
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http://security.gentoo.org/glsa/glsa-200710-06.xml |
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|
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Concerns? |
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========= |
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|
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Security is a primary focus of Gentoo Linux and ensuring the |
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confidentiality and security of our users machines is of utmost |
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importance to us. Any security concerns should be addressed to |
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security@g.o or alternatively, you may file a bug at |
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http://bugs.gentoo.org. |
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|
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License |
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======= |
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|
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Copyright 2007 Gentoo Foundation, Inc; referenced text |
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belongs to its owner(s). |
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|
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The contents of this document are licensed under the |
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Creative Commons - Attribution / Share Alike license. |
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|
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http://creativecommons.org/licenses/by-sa/2.5 |
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