Explain CVE-2016-0702
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.
Affected Products: n/a
References: [{'name': 'FEDORA-2016-2802690366', 'tags': ['vendor-advisory'], 'url': 'http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178358.html'}, {'name': 'openSUSE-SU-2016:1242', 'tags': ['vendor-advisory'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00018.html'}, {'name': 'SUSE-SU-2016:1267', 'tags': ['vendor-advisory'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00029.html'}, {'name': 'FEDORA-2016-e6807b3394', 'tags': ['vendor-advisory'], 'url': 'http://lists.fedoraproject.org/pipermail/package-announce/2016-March/178817.html'}, {'name': 'openSUSE-SU-2016:0638', 'tags': ['vendor-advisory'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00010.html'}, {'url': 'https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05376917'}, {'name': 'FreeBSD-SA-16:12', 'tags': ['vendor-advisory'], 'url': 'https://security.FreeBSD.org/advisories/FreeBSD-SA-16:12.openssl.asc'}, {'url': 'http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html'}, {'name': 'openSUSE-SU-2016:1239', 'tags': ['vendor-advisory'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00015.html'}, {'name': 'SUSE-SU-2016:0621', 'tags': ['vendor-advisory'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00003.html'}, {'name': 'HPSBGN03563', 'tags': ['vendor-advisory'], 'url': 'http://marc.info/?l=bugtraq&m=145889460330120&w=2'}, {'name': 'USN-2914-1', 'tags': ['vendor-advisory'], 'url': 'http://www.ubuntu.com/usn/USN-2914-1'}, {'url': 'http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html'}, {'name': 'SUSE-SU-2016:1057', 'tags': ['vendor-advisory'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00038.html'}, {'name': 'openSUSE-SU-2016:1566', 'tags': ['vendor-advisory'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00019.html'}, {'url': 'https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40168'}, {'name': 'openSUSE-SU-2016:1241', 'tags': ['vendor-advisory'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00017.html'}, {'url': 'http://openssl.org/news/secadv/20160301.txt'}, {'name': 'SUSE-SU-2016:1360', 'tags': ['vendor-advisory'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00055.html'}, {'name': '20160302 Multiple Vulnerabilities in OpenSSL Affecting Cisco Products: March 2016', 'tags': ['vendor-advisory'], 'url': 'http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160302-openssl'}, {'name': 'openSUSE-SU-2016:0720', 'tags': ['vendor-advisory'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00025.html'}, {'url': 'https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722'}, {'name': 'SUSE-SU-2016:0624', 'tags': ['vendor-advisory'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00004.html'}, {'name': 'DSA-3500', 'tags': ['vendor-advisory'], 'url': 'http://www.debian.org/security/2016/dsa-3500'}, {'url': 'https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03741en_us'}, {'name': 'SUSE-SU-2016:0631', 'tags': ['vendor-advisory'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00007.html'}, {'url': 'https://www.openssl.org/news/secadv/20160301.txt'}, {'url': 'http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html'}, {'name': 'SUSE-SU-2016:0617', 'tags': ['vendor-advisory'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00001.html'}, {'name': 'SUSE-SU-2016:1290', 'tags': ['vendor-advisory'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00036.html'}, {'name': 'openSUSE-SU-2016:1273', 'tags': ['vendor-advisory'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00030.html'}, {'name': 'RHSA-2016:2957', 'tags': ['vendor-advisory'], 'url': 'http://rhn.redhat.com/errata/RHSA-2016-2957.html'}, {'name': 'GLSA-201603-15', 'tags': ['vendor-advisory'], 'url': 'https://security.gentoo.org/glsa/201603-15'}, {'name': 'openSUSE-SU-2016:0628', 'tags': ['vendor-advisory'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00006.html'}, {'name': '1035133', 'tags': ['vdb-entry'], 'url': 'http://www.securitytracker.com/id/1035133'}, {'url': 'http://cachebleed.info'}, {'url': 'https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=708dc2f1291e104fe4eef810bb8ffc1fae5b19c1'}, {'name': 'SUSE-SU-2016:0620', 'tags': ['vendor-advisory'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00002.html'}, {'name': 'openSUSE-SU-2016:0637', 'tags': ['vendor-advisory'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00009.html'}, {'name': 'openSUSE-SU-2016:0627', 'tags': ['vendor-advisory'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00005.html'}, {'name': 'SUSE-SU-2016:0641', 'tags': ['vendor-advisory'], 'url': 'http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00012.html'}, {'url': 'https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05052990'}, {'url': 'http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759'}, {'url': 'https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf'}]
CVE State: PUBLISHED