Explain CVE-2003-0147
OpenSSL does not use RSA blinding by default, which allows local and remote attackers to obtain the server's private key by determining factors using timing differences on (1) the number of extra reductions during Montgomery reduction, and (2) the use of different integer multiplication algorithms ("Karatsuba" and normal).
Affected Products: n/a
References: [{'name': 'DSA-288', 'tags': ['vendor-advisory', 'x_refsource_DEBIAN'], 'url': 'http://www.debian.org/security/2003/dsa-288'}, {'name': 'RHSA-2003:101', 'tags': ['vendor-advisory', 'x_refsource_REDHAT'], 'url': 'http://www.redhat.com/support/errata/RHSA-2003-101.html'}, {'name': 'RHSA-2003:102', 'tags': ['vendor-advisory', 'x_refsource_REDHAT'], 'url': 'http://www.redhat.com/support/errata/RHSA-2003-102.html'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://www.openssl.org/news/secadv_20030317.txt'}, {'name': 'GLSA-200303-15', 'tags': ['vendor-advisory', 'x_refsource_GENTOO'], 'url': 'http://marc.info/?l=bugtraq&m=104829040921835&w=2'}, {'name': '20030325 Fwd: APPLE-SA-2003-03-24 Samba, OpenSSL', 'tags': ['mailing-list', 'x_refsource_BUGTRAQ'], 'url': 'http://www.securityfocus.com/archive/1/316165/30/25370/threaded'}, {'name': 'APPLE-SA-2003-03-24', 'tags': ['vendor-advisory', 'x_refsource_APPLE'], 'url': 'http://www.securityfocus.com/archive/1/316165/30/25370/threaded'}, {'name': '20030317 [ADVISORY] Timing Attack on OpenSSL', 'tags': ['mailing-list', 'x_refsource_BUGTRAQ'], 'url': 'http://marc.info/?l=bugtraq&m=104792570615648&w=2'}, {'name': 'CSSA-2003-014.0', 'tags': ['vendor-advisory', 'x_refsource_CALDERA'], 'url': 'ftp://ftp.sco.com/pub/security/OpenLinux/CSSA-2003-014.0.txt'}, {'name': 'MDKSA-2003:035', 'tags': ['vendor-advisory', 'x_refsource_MANDRAKE'], 'url': 'http://www.mandrakesecure.net/en/advisories/advisory.php?name=MDKSA-2003:035'}, {'tags': ['x_refsource_MISC'], 'url': 'http://crypto.stanford.edu/~dabo/papers/ssl-timing.pdf'}, {'name': 'GLSA-200303-23', 'tags': ['vendor-advisory', 'x_refsource_GENTOO'], 'url': 'http://www.gentoo.org/security/en/glsa/glsa-200303-23.xml'}, {'name': 'oval:org.mitre.oval:def:466', 'tags': ['vdb-entry', 'signature', 'x_refsource_OVAL'], 'url': 'https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A466'}, {'name': 'OpenPKG-SA-2003.019', 'tags': ['vendor-advisory', 'x_refsource_OPENPKG'], 'url': 'http://www.openpkg.com/security/advisories/OpenPKG-SA-2003.019.html'}, {'name': 'GLSA-200303-24', 'tags': ['vendor-advisory', 'x_refsource_GENTOO'], 'url': 'http://marc.info/?l=bugtraq&m=104861762028637&w=2'}, {'name': 'IMNX-2003-7+-001-01', 'tags': ['vendor-advisory', 'x_refsource_IMMUNIX'], 'url': 'http://www.securityfocus.com/archive/1/316577/30/25310/threaded'}, {'name': '20030327 Immunix Secured OS 7+ openssl update', 'tags': ['mailing-list', 'x_refsource_BUGTRAQ'], 'url': 'http://www.securityfocus.com/archive/1/316577/30/25310/threaded'}, {'name': '20030501-01-I', 'tags': ['vendor-advisory', 'x_refsource_SGI'], 'url': 'ftp://patches.sgi.com/support/free/security/advisories/20030501-01-I'}, {'name': '20030313 Vulnerability in OpenSSL', 'tags': ['mailing-list', 'x_refsource_BUGTRAQ'], 'url': 'http://marc.info/?l=bugtraq&m=104766550528628&w=2'}, {'name': '20030320 [OpenPKG-SA-2003.026] OpenPKG Security Advisory (openssl)', 'tags': ['mailing-list', 'x_refsource_BUGTRAQ'], 'url': 'http://marc.info/?l=bugtraq&m=104819602408063&w=2'}, {'name': 'CLA-2003:625', 'tags': ['vendor-advisory', 'x_refsource_CONECTIVA'], 'url': 'http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000625'}, {'name': 'VU#997481', 'tags': ['third-party-advisory', 'x_refsource_CERT-VN'], 'url': 'http://www.kb.cert.org/vuls/id/997481'}, {'name': '20030313 OpenSSL Private Key Disclosure', 'tags': ['mailing-list', 'x_refsource_VULNWATCH'], 'url': 'http://archives.neohapsis.com/archives/vulnwatch/2003-q1/0130.html'}]
CVE State: PUBLISHED