CVE-2016-2178 : The dsa_sign_setup function in crypto/dsa/dsa_ossl.c in OpenSSL through 1.0.2h does not properly ensure the use of const

The dsa_sign_setup function in crypto/dsa/dsa_ossl.c in OpenSSL through 1.0.2h does not properly ensure the use of constant-time operations, which makes it easier for local users to discover a DSA private key via a timing side-channel attack.

Published 2016-06-20 01:59:03

Updated 2022-12-13 12:15:22

Source Red Hat, Inc.

View at NVD, CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2016-2178

Probability of exploitation activity in the next 30 days: 0.14%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 49 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2016-2178

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
2.1	LOW	AV:L/AC:L/Au:N/C:P/I:N/A:N	3.9	2.9	NIST
Access Vector: Local Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: None Availability Impact: None
5.5	MEDIUM	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N	1.8	3.6	NIST
Attack Vector: Local Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: High Integrity: None Availability: None

CWE ids for CVE-2016-2178

CWE-203 Observable Discrepancy

The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor, which exposes security-relevant information about the state of the product, such as whether a particular operation was successful or not.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2016-2178

https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03856en_us

HPESBHF03856 rev.1 - Comware v7 and Intelligent Management Center Products, Remote Denial of Service
Third Party Advisory

CVEs referencing this url
https://security.gentoo.org/glsa/201612-16

OpenSSL: Multiple vulnerabilities (GLSA 201612-16) — Gentoo security
Third Party Advisory;VDB Entry

CVEs referencing this url
https://access.redhat.com/errata/RHSA-2017:0194

RHSA-2017:0194 - Security Advisory - Red Hat Customer Portal
Third Party Advisory

CVEs referencing this url
http://www.openwall.com/lists/oss-security/2016/06/08/11

oss-security - Re: CVE-2016-2178: OpenSSL DSA follows a non-constant time codepath for certain operations
Mailing List;Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00029.html

[security-announce] openSUSE-SU-2016:2537-1: important: Security update for compat-openssl098 - openSUSE Security Announce - openSUSE Mailing Lists
Mailing List;Third Party Advisory

CVEs referencing this url
http://rhn.redhat.com/errata/RHSA-2016-1940.html

RHSA-2016:1940 - Security Advisory - Red Hat Customer Portal
Third Party Advisory

CVEs referencing this url
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-c05302448

Document - HPSBGN03658 rev.1 - HPE IceWall Products using OpenSSL, Local or Remote Unauthorized Disclosure of Information, Remote Denial of Service (DoS), Unauthorized Modification | HPE Support
Third Party Advisory

CVEs referencing this url
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05302448

HPSBGN03658 rev.1 - HPE IceWall Products using OpenSSL, Local or Remote Unauthorized Disclosure of Information, Remote Denial of Service (DoS), Unauthorized Modification
Third Party Advisory

CVEs referencing this url
http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html

Oracle Critical Patch Update - April 2018
Patch;Third Party Advisory

CVEs referencing this url
https://support.hpe.com/hpsc/doc/public/display?docLocale=en&docId=emr_na-hpesbhf03856en_us

Document - HPESBHF03856 rev.1 - Comware v7 and Intelligent Management Center Products, Remote Denial of Service | HPE Support
Third Party Advisory

CVEs referencing this url
http://www.openwall.com/lists/oss-security/2016/06/08/2

oss-security - CVE-2016-2178: OpenSSL DSA follows a non-constant time codepath for certain operations
Mailing List;Patch;Third Party Advisory
https://www.tenable.com/security/tns-2016-20

[R3] PVS 5.2.0 Fixes Multiple Third-party Library Vulnerabilities - Security Advisory | Tenable®
Third Party Advisory

CVEs referencing this url
http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00021.html

[security-announce] openSUSE-SU-2016:2496-1: important: Security update for nodejs - openSUSE Security Announce - openSUSE Mailing Lists
Mailing List;Third Party Advisory

CVEs referencing this url
http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00005.html

[security-announce] SUSE-SU-2016:2458-1: important: Security update for openssl - openSUSE Security Announce - openSUSE Mailing Lists
Mailing List;Third Party Advisory

CVEs referencing this url
http://eprint.iacr.org/2016/594.pdf

Technical Description;Third Party Advisory
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html

Oracle Critical Patch Update - January 2018
Patch;Third Party Advisory

CVEs referencing this url
http://www.openwall.com/lists/oss-security/2016/06/08/5

oss-security - Re: CVE-2016-2178: OpenSSL DSA follows a non-constant time codepath for certain operations
Mailing List;Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-2957.html

RHSA-2016:2957 - Security Advisory - Red Hat Customer Portal
Third Party Advisory

CVEs referencing this url
http://www.openwall.com/lists/oss-security/2016/06/08/8

oss-security - Re: CVE-2016-2178: OpenSSL DSA follows a non-constant time codepath for certain operations
Mailing List;Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/06/09/8

oss-security - Re: CVE-2016-2178: OpenSSL DSA follows a non-constant time codepath for certain operations
Mailing List;Third Party Advisory
http://www.openwall.com/lists/oss-security/2016/06/08/10

oss-security - Re: CVE-2016-2178: OpenSSL DSA follows a non-constant time codepath for certain operations
Mailing List;Third Party Advisory
http://www.securitytracker.com/id/1036054

OpenSSL DSA Signing Constant Timing Bug May Let Remote Users Obtain Potentially Sensitive Information on the Target System - SecurityTracker
Third Party Advisory;VDB Entry
http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00024.html

[security-announce] SUSE-SU-2016:2394-1: important: Security update for openssl - openSUSE Security Announce - openSUSE Mailing Lists
Mailing List;Third Party Advisory

CVEs referencing this url
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160927-openssl

Third Party Advisory

CVEs referencing this url
https://kc.mcafee.com/corporate/index?page=content&id=SB10215

Third Party Advisory

CVEs referencing this url
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html

Oracle Solaris Bulletin - April 2016
Third Party Advisory

CVEs referencing this url
http://seclists.org/fulldisclosure/2017/Jul/31

Full Disclosure: Orion Elite Hidden IP Browser Pro - All Versions - Multiple Known Vulnerabilities
Mailing List;Third Party Advisory

CVEs referencing this url
https://git.openssl.org/?p=openssl.git;a=commit;h=399944622df7bd81af62e67ea967c470534090e2

git.openssl.org Git - openssl.git/commit
Issue Tracking;Patch;Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00012.html

[security-announce] SUSE-SU-2016:2469-1: important: Security update for openssl1 - openSUSE Security Announce - openSUSE Mailing Lists
Mailing List;Third Party Advisory

CVEs referencing this url
https://www.tenable.com/security/tns-2016-21

[R2] LCE 4.8.2 Fixes Multiple Third-party Library Vulnerabilities - Security Advisory | Tenable®
Third Party Advisory

CVEs referencing this url
https://access.redhat.com/errata/RHSA-2017:1658

RHSA-2017:1658 - Security Advisory - Red Hat Customer Portal
Third Party Advisory

CVEs referencing this url
http://www.securityfocus.com/bid/91081

OpenSSL CVE-2016-2178 Side Channel Attack Information Disclosure Vulnerability
Third Party Advisory;VDB Entry
http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html

Oracle VM Server for x86 Bulletin - October 2016
Third Party Advisory

CVEs referencing this url
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40312

Pulse Security Advisory: SA40312 - September 22 2016 OpenSSL Security Advisory
Third Party Advisory

CVEs referencing this url
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html

Oracle Linux Bulletin - October 2016
Third Party Advisory

CVEs referencing this url
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html

Oracle Critical Patch Update - October 2017
Patch;Third Party Advisory

CVEs referencing this url
http://www-01.ibm.com/support/docview.wss?uid=swg21995039

IBM notice: The page you requested cannot be displayed
Third Party Advisory

CVEs referencing this url
http://www.openwall.com/lists/oss-security/2016/06/08/7

oss-security - Re: CVE-2016-2178: OpenSSL DSA follows a non-constant time codepath for certain operations
Mailing List;Third Party Advisory
https://nodejs.org/en/blog/vulnerability/september-2016-security-releases/

Security updates for all active release lines, September 2016 | Node.js
Third Party Advisory

CVEs referencing this url
https://support.f5.com/csp/article/K53084033

OpenSSL vulnerability CVE-2016-2178
Third Party Advisory
http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html

Oracle Critical Patch Update - October 2016
Patch;Third Party Advisory

CVEs referencing this url
http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00023.html

[security-announce] openSUSE-SU-2016:2391-1: important: Security update for openssl - openSUSE Security Announce - openSUSE Mailing Lists
Mailing List;Third Party Advisory

CVEs referencing this url
http://www.debian.org/security/2016/dsa-3673

Debian -- Security Information -- DSA-3673-1 openssl
Third Party Advisory

CVEs referencing this url
http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00031.html

[security-announce] openSUSE-SU-2016:2407-1: important: Security update for openssl - openSUSE Security Announce - openSUSE Mailing Lists
Mailing List;Third Party Advisory

CVEs referencing this url
http://www.splunk.com/view/SP-CAAAPUE

Splunk Enterprise 6.4.5 addresses multiple vulnerabilities | Splunk
Third Party Advisory

CVEs referencing this url
https://security.FreeBSD.org/advisories/FreeBSD-SA-16:26.openssl.asc

Third Party Advisory

CVEs referencing this url
http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00011.html

[security-announce] SUSE-SU-2017:2700-1: important: Security update for SLES 12-SP1 Docker image - openSUSE Security Announce - openSUSE Mailing Lists
Mailing List;Third Party Advisory

CVEs referencing this url
https://www.arista.com/en/support/advisories-notices/security-advisories/1749-security-advisory-24

Security Advisory 0024 - Arista
Third Party Advisory

CVEs referencing this url
http://www.openwall.com/lists/oss-security/2016/06/09/2

oss-security - Re: CVE-2016-2178: OpenSSL DSA follows a non-constant time codepath for certain operations
Mailing List;Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2017-1659.html

RHSA-2017:1659 - Security Advisory - Red Hat Customer Portal
Third Party Advisory

CVEs referencing this url
https://www.tenable.com/security/tns-2016-16

[R7] Nessus 6.9 Fixes Multiple Vulnerabilities - Security Advisory | Tenable®
Third Party Advisory

CVEs referencing this url
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20170322-01-openssl-en

Security Advisory - Sixteen OpenSSL Vulnerabilities on Some Huawei products
Third Party Advisory

CVEs referencing this url
https://bto.bluecoat.com/security-advisory/sa132

SA132 : OpenSSL Vulnerabilities 22-Sep-2016 and 26-Sep-2016
Third Party Advisory

CVEs referencing this url
http://www.openwall.com/lists/oss-security/2016/06/08/12

oss-security - Re: CVE-2016-2178: OpenSSL DSA follows a non-constant time codepath for certain operations
Mailing List;Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf

CVEs referencing this url
http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00022.html

[security-announce] SUSE-SU-2016:2387-1: important: Security update for openssl - openSUSE Security Announce - openSUSE Mailing Lists
Mailing List;Third Party Advisory

CVEs referencing this url
https://bugzilla.redhat.com/show_bug.cgi?id=1343400

1343400 – (CVE-2016-2178) CVE-2016-2178 openssl: Non-constant time codepath followed for certain operations in DSA implementation
Issue Tracking;Patch
http://www.splunk.com/view/SP-CAAAPSV

Splunk Enterprise 6.5.1 addresses multiple OpenSSL vulnerabilities | Splunk
Third Party Advisory

CVEs referencing this url
http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00010.html

[security-announce] SUSE-SU-2017:2699-1: important: Security update for SLES 12 Docker image - openSUSE Security Announce - openSUSE Mailing Lists
Mailing List;Third Party Advisory

CVEs referencing this url
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759

Juniper Networks - 2016-10 Security Bulletin: OpenSSL security updates
Third Party Advisory

CVEs referencing this url
http://www.openwall.com/lists/oss-security/2016/06/08/4

oss-security - Re: CVE-2016-2178: OpenSSL DSA follows a non-constant time codepath for certain operations
Mailing List;Third Party Advisory
http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html

Oracle Critical Patch Update - July 2017
Patch;Third Party Advisory

CVEs referencing this url
http://www.openwall.com/lists/oss-security/2016/06/08/6

oss-security - Re: CVE-2016-2178: OpenSSL DSA follows a non-constant time codepath for certain operations
Mailing List;Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00013.html

[security-announce] SUSE-SU-2016:2470-1: important: Security update for
Third Party Advisory

CVEs referencing this url
http://www.ubuntu.com/usn/USN-3087-2

USN-3087-2: OpenSSL regression | Ubuntu security notices | Ubuntu
Third Party Advisory

CVEs referencing this url
http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00011.html

Mailing List;Third Party Advisory

CVEs referencing this url
https://access.redhat.com/errata/RHSA-2017:0193

RHSA-2017:0193 - Security Advisory - Red Hat Customer Portal
Third Party Advisory

CVEs referencing this url
http://www.ubuntu.com/usn/USN-3087-1

USN-3087-1: OpenSSL vulnerabilities | Ubuntu security notices | Ubuntu
Third Party Advisory

CVEs referencing this url
http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00032.html

[security-announce] openSUSE-SU-2018:0458-1: important: Security update for openssl-steam - openSUSE Security Announce - openSUSE Mailing Lists
Mailing List;Third Party Advisory

CVEs referencing this url

Products affected by CVE-2016-2178

Debian » Debian Linux » Version: 8.0
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
Matching versions
Suse » Linux Enterprise » Version: 12.0
cpe:2.3:o:suse:linux_enterprise:12.0:*:*:*:*:*:*:*
Matching versions
Oracle » Solaris » Version: 10
cpe:2.3:o:oracle:solaris:10:*:*:*:*:*:*:*
Matching versions
Oracle » Solaris » Version: 11.3
cpe:2.3:o:oracle:solaris:11.3:*:*:*:*:*:*:*
Matching versions
Oracle » Linux » Version: 7
cpe:2.3:o:oracle:linux:7:*:*:*:*:*:*:*
Matching versions
Oracle » Linux » Version: 6
cpe:2.3:o:oracle:linux:6:*:*:*:*:*:*:*
Matching versions
Oracle » Linux » Version: 5
cpe:2.3:o:oracle:linux:5:*:*:*:*:*:*:*
Matching versions
Openssl » Openssl » Version: 1.0.1f
cpe:2.3:a:openssl:openssl:1.0.1f:*:*:*:*:*:*:*
Matching versions
Openssl » Openssl » Version: 1.0.1c
cpe:2.3:a:openssl:openssl:1.0.1c:*:*:*:*:*:*:*
Matching versions
Openssl » Openssl » Version: 1.0.1b
cpe:2.3:a:openssl:openssl:1.0.1b:*:*:*:*:*:*:*
Matching versions
Openssl » Openssl » Version: 1.0.1e
cpe:2.3:a:openssl:openssl:1.0.1e:*:*:*:*:*:*:*
Matching versions
Openssl » Openssl » Version: 1.0.1d
cpe:2.3:a:openssl:openssl:1.0.1d:*:*:*:*:*:*:*
Matching versions
Openssl » Openssl » Version: 1.0.1
cpe:2.3:a:openssl:openssl:1.0.1:*:*:*:*:*:*:*
Matching versions
Openssl » Openssl » Version: 1.0.1a
cpe:2.3:a:openssl:openssl:1.0.1a:*:*:*:*:*:*:*
Matching versions
Openssl » Openssl » Version: 1.0.1g
cpe:2.3:a:openssl:openssl:1.0.1g:*:*:*:*:*:*:*
Matching versions
Openssl » Openssl » Version: 1.0.1h
cpe:2.3:a:openssl:openssl:1.0.1h:*:*:*:*:*:*:*
Matching versions
Openssl » Openssl » Version: 1.0.1i
cpe:2.3:a:openssl:openssl:1.0.1i:*:*:*:*:*:*:*
Matching versions
Openssl » Openssl » Version: 1.0.1j
cpe:2.3:a:openssl:openssl:1.0.1j:*:*:*:*:*:*:*
Matching versions
Openssl » Openssl » Version: 1.0.2
cpe:2.3:a:openssl:openssl:1.0.2:*:*:*:*:*:*:*
Matching versions
Openssl » Openssl » Version: 1.0.1l
cpe:2.3:a:openssl:openssl:1.0.1l:*:*:*:*:*:*:*
Matching versions
Openssl » Openssl » Version: 1.0.1k
cpe:2.3:a:openssl:openssl:1.0.1k:*:*:*:*:*:*:*
Matching versions
Openssl » Openssl » Version: 1.0.1m
cpe:2.3:a:openssl:openssl:1.0.1m:*:*:*:*:*:*:*
Matching versions
Openssl » Openssl » Version: 1.0.2a
cpe:2.3:a:openssl:openssl:1.0.2a:*:*:*:*:*:*:*
Matching versions
Openssl » Openssl » Version: 1.0.2b
cpe:2.3:a:openssl:openssl:1.0.2b:*:*:*:*:*:*:*
Matching versions
Openssl » Openssl » Version: 1.0.2c
cpe:2.3:a:openssl:openssl:1.0.2c:*:*:*:*:*:*:*
Matching versions
Openssl » Openssl » Version: 1.0.1n
cpe:2.3:a:openssl:openssl:1.0.1n:*:*:*:*:*:*:*
Matching versions
Openssl » Openssl » Version: 1.0.1o
cpe:2.3:a:openssl:openssl:1.0.1o:*:*:*:*:*:*:*
Matching versions
Openssl » Openssl » Version: 1.0.2d
cpe:2.3:a:openssl:openssl:1.0.2d:*:*:*:*:*:*:*
Matching versions
Openssl » Openssl » Version: 1.0.2e
cpe:2.3:a:openssl:openssl:1.0.2e:*:*:*:*:*:*:*
Matching versions
Openssl » Openssl » Version: 1.0.1q
cpe:2.3:a:openssl:openssl:1.0.1q:*:*:*:*:*:*:*
Matching versions
Openssl » Openssl » Version: 1.0.1p
cpe:2.3:a:openssl:openssl:1.0.1p:*:*:*:*:*:*:*
Matching versions
Openssl » Openssl » Version: 1.0.2f
cpe:2.3:a:openssl:openssl:1.0.2f:*:*:*:*:*:*:*
Matching versions
Openssl » Openssl » Version: 1.0.1r
cpe:2.3:a:openssl:openssl:1.0.1r:*:*:*:*:*:*:*
Matching versions
Openssl » Openssl » Version: 1.0.2g
cpe:2.3:a:openssl:openssl:1.0.2g:*:*:*:*:*:*:*
Matching versions
Openssl » Openssl » Version: 1.0.1s
cpe:2.3:a:openssl:openssl:1.0.1s:*:*:*:*:*:*:*
Matching versions
Openssl » Openssl » Version: 1.0.1t
cpe:2.3:a:openssl:openssl:1.0.1t:*:*:*:*:*:*:*
Matching versions
Openssl » Openssl » Version: 1.0.2h
cpe:2.3:a:openssl:openssl:1.0.2h:*:*:*:*:*:*:*
Matching versions
Canonical » Ubuntu Linux » Version: 12.04
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*
Matching versions
Canonical » Ubuntu Linux » Version: 14.04 ESM Edition
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
Matching versions
Canonical » Ubuntu Linux » Version: 16.04 ESM Edition
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:esm:*:*:*
Matching versions
Nodejs » Node.js »
Versions from including (>=) 0.12.0 and before (<) 0.12.16
cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*
Matching versions
Nodejs » Node.js »
Versions from including (>=) 4.0.0 and up to, including, (<=) 4.1.2
cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*
Matching versions
Nodejs » Node.js »
Versions from including (>=) 5.0.0 and before (<) 6.7.0
cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*
Matching versions
Nodejs » Node.js » LTS Edition
Versions from including (>=) 4.2.0 and before (<) 4.6.0
cpe:2.3:a:nodejs:node.js:*:*:*:*:lts:*:*:*
Matching versions
Nodejs » Node.js »
Versions from including (>=) 0.10.0 and before (<) 0.10.47
cpe:2.3:a:nodejs:node.js:*:*:*:*:-:*:*:*
Matching versions

Vulnerability Details : CVE-2016-2178

Exploit prediction scoring system (EPSS) score for CVE-2016-2178

CVSS scores for CVE-2016-2178

CWE ids for CVE-2016-2178

References for CVE-2016-2178

Products affected by CVE-2016-2178