CVE-2016-0702

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CVE-2016-0702

Summary:

Details: The MOD_EXP_CTIME_COPY_FROM_PREBUF function in crypto/bn/bn_exp.c in OpenSSL 1.0.1 before 1.0.1s and 1.0.2 before 1.0.2g does not properly consider cache-bank access times during modular exponentiation, which makes it easier for local users to discover RSA keys by running a crafted application on the same Intel Sandy Bridge CPU core as a victim and leveraging cache-bank conflicts, aka a "CacheBleed" attack.

References: http://cachebleed.info, https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf, https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=708dc2f1291e104fe4eef810bb8ffc1fae5b19c1, http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759, http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178358.html, http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178817.html, http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00001.html, http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00002.html, http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00003.html, http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00004.html, http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00005.html, http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00006.html, http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00007.html, http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00009.html, http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00010.html, http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00012.html, http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00025.html, http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00038.html, http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00015.html, http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00017.html, http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00018.html, http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00029.html, http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00030.html, http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00036.html, http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00055.html, http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00019.html, http://marc.info/?l=bugtraq&m=145889460330120&w=2, http://openssl.org/news/secadv/20160301.txt, http://rhn.redhat.com/errata/RHSA-2016-2957.html, http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160302-openssl, http://www.debian.org/security/2016/dsa-3500, http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html, http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html, http://www.securitytracker.com/id/1035133, http://www.ubuntu.com/usn/USN-2914-1, https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03741en_us, https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05052990, https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05376917, https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722, https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40168, https://security.FreeBSD.org/advisories/FreeBSD-SA-16:12.openssl.asc, https://security.gentoo.org/glsa/201603-15, https://www.openssl.org/news/secadv/20160301.txt, http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html