National Vulnerability Database

National Vulnerability Database

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    Vulnerabilities Detail

CVE-2016-7056 Detail

Current 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.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 5.5 MEDIUM
Vector: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N (V3 legend)
Impact Score: 3.6
Exploitability Score: 1.8

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): None

CVSS v2.0 Severity and Metrics:

Base Score: 2.1 LOW
Vector: (AV:L/AC:L/Au:N/C:P/I:N/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 3.9

Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): None
Availability (A): None
Additional Information:
Allows unauthorized disclosure of information

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://rhn.redhat.com/errata/RHSA-2017-1415.html Third Party Advisory
http://www.securityfocus.com/bid/95375 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1037575 Patch Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2017:1413 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1414 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1801 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1802 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7056 Issue Tracking Patch Third Party Advisory
https://eprint.iacr.org/2016/1195 Third Party Advisory
https://ftp.openbsd.org/pub/OpenBSD/patches/5.9/common/033_libcrypto.patch.sig Patch Third Party Advisory
https://ftp.openbsd.org/pub/OpenBSD/patches/6.0/common/016_libcrypto.patch.sig Patch Third Party Advisory
https://git.openssl.org/?p=openssl.git;a=commit;h=8aed2a7548362e88e84a7feb795a3a97e8395008 Patch Third Party Advisory
https://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-7056.html Patch Third Party Advisory
https://seclists.org/oss-sec/2017/q1/52 Mailing List Third Party Advisory
https://security-tracker.debian.org/tracker/CVE-2016-7056 Patch Third Party Advisory VDB Entry
https://www.debian.org/security/2017/dsa-3773 Third Party Advisory

Technical Details

Vulnerability Type (View All)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:openssl:openssl:*:*:*:*:*:*:*:*
     Show Matching CPE(s)
Up to (including)
1.0.1u

Configuration 2 ( hide )
 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 3 ( hide )
 cpe:2.3:o:redhat:enterprise_linux:6.0:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 4 ( hide )
 cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
     Show Matching CPE(s)


Change History

4 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-7056
NVD Published Date:
09/10/2018
NVD Last Modified:
04/22/2019