CVE-2016-7056

Description

A timing attack flaw was found in OpenSSL 1.0.1u and before that could allow a malicious user with local access to recover ECDSA P-256 private keys.

Categories

5.5
CVSS
Severity: Medium
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.41%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory debian.org Vendor Advisory redhat.com Vendor Advisory redhat.com
Affected: The OpenSSL Project openssl
Published at:
Updated at:

References

Link Tags
https://eprint.iacr.org/2016/1195 third party advisory
https://access.redhat.com/errata/RHSA-2017:1801 third party advisory vendor advisory
https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=8aed2a7548362e88e84a7feb795a3a97e8395008
https://access.redhat.com/errata/RHSA-2017:1413 third party advisory vendor advisory
https://ftp.openbsd.org/pub/OpenBSD/patches/6.0/common/016_libcrypto.patch.sig third party advisory patch
http://www.securitytracker.com/id/1037575 patch third party advisory vdb entry
https://access.redhat.com/errata/RHSA-2017:1414 third party advisory vendor advisory
https://seclists.org/oss-sec/2017/q1/52 third party advisory mailing list
https://www.debian.org/security/2017/dsa-3773 third party advisory vendor advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7056 patch third party advisory issue tracking
https://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-7056.html third party advisory patch
http://www.securityfocus.com/bid/95375 third party advisory vdb entry
http://rhn.redhat.com/errata/RHSA-2017-1415.html third party advisory vendor advisory
https://ftp.openbsd.org/pub/OpenBSD/patches/5.9/common/033_libcrypto.patch.sig third party advisory patch
https://security-tracker.debian.org/tracker/CVE-2016-7056 patch third party advisory vdb entry
https://access.redhat.com/errata/RHSA-2017:1802 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2016-7056?
CVE-2016-7056 has been scored as a medium severity vulnerability.
How to fix CVE-2016-7056?
To fix CVE-2016-7056, 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-2016-7056 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2016-7056 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.
What software or system is affected by CVE-2016-7056?
CVE-2016-7056 affects The OpenSSL Project openssl.
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