CVE-2016-0702

Description

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.

Category

5.1
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.49%
Vendor Advisory fedoraproject.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory fedoraproject.org Vendor Advisory opensuse.org Vendor Advisory FreeBSD.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory marc.info Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory cisco.com Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory debian.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory gentoo.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory openssl.org
Affected: n/a n/a
Published at:
Updated at:

References

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

Frequently Asked Questions

What is the severity of CVE-2016-0702?
CVE-2016-0702 has been scored as a medium severity vulnerability.
How to fix CVE-2016-0702?
To fix CVE-2016-0702, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-0702 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2016-0702 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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