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CVE-2016-2178

Date: June 19, 2016

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.

Language: C

Severity Score

5.5

Related Resources (74)

Url: http://www.splunk.com/view/SP-CAAAPSV

Url: http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html

Url: https://access.redhat.com/errata/RHSA-2017:0193

Url: https://access.redhat.com/errata/RHSA-2017:0194

Url: https://www.tenable.com/security/tns-2016-16

Url: https://security.FreeBSD.org/advisories/FreeBSD-SA-16:26.openssl.asc

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

Url: https://bto.bluecoat.com/security-advisory/sa132

Url: http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00032.html

Url: https://access.redhat.com/security/cve/CVE-2016-2178

Url: https://security.gentoo.org/glsa/201612-16

Url: http://www.openwall.com/lists/oss-security/2016/06/08/10

Url: http://www.openwall.com/lists/oss-security/2016/06/08/7

Url: http://www.openwall.com/lists/oss-security/2016/06/08/6

Url: http://www.securitytracker.com/id/1036054

Url: http://www.openwall.com/lists/oss-security/2016/06/08/12

Url: http://www.openwall.com/lists/oss-security/2016/06/08/8

Url: http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00029.html

Url: http://www.openwall.com/lists/oss-security/2016/06/08/11

Url: http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759

Url: http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html

Url: http://www.openwall.com/lists/oss-security/2016/06/08/2

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

Url: http://www.openwall.com/lists/oss-security/2016/06/08/5

Url: https://kc.mcafee.com/corporate/index?page=content&id=SB10215

Url: http://www.openwall.com/lists/oss-security/2016/06/08/4

Url: http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00010.html

Url: http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html

Url: https://bugzilla.redhat.com/show_bug.cgi?id=1343400

Url: https://security-tracker.debian.org/tracker/CVE-2016-2178

Url: https://support.f5.com/csp/article/K53084033

Url: https://www.arista.com/en/support/advisories-notices/security-advisories/1749-security-advisory-24

Url: http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00012.html

Url: http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00023.html

Url: https://www.tenable.com/security/tns-2016-21

Url: https://www.tenable.com/security/tns-2016-20

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2016-2178

Url: http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00031.html

Url: http://rhn.redhat.com/errata/RHSA-2017-1659.html

Url: http://rhn.redhat.com/errata/RHSA-2016-1940.html

Url: https://nodejs.org/en/blog/vulnerability/september-2016-security-releases/

Url: http://www-01.ibm.com/support/docview.wss?uid=swg21995039

Url: https://nvd.nist.gov/vuln/detail/CVE-2016-2178

Url: http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html

Url: http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20170322-01-openssl-en

Url: http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00022.html

Url: http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00011.html

Url: https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=399944622df7bd81af62e67ea967c470534090e2

Url: http://www.splunk.com/view/SP-CAAAPUE

Url: http://eprint.iacr.org/2016/594.pdf

Url: http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html

Url: https://access.redhat.com/errata/RHSA-2017:1658

Url: http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html

Url: http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html

Url: http://www.openwall.com/lists/oss-security/2016/06/09/8

Url: http://www.ubuntu.com/usn/USN-3087-2

Url: http://www.ubuntu.com/usn/USN-3087-1

Url: http://www.openwall.com/lists/oss-security/2016/06/09/2

Url: http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00011.html

Url: http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160927-openssl

Url: https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf

Url: http://www.securityfocus.com/bid/91081

Url: http://seclists.org/fulldisclosure/2017/Jul/31

Url: https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40312

Url: http://www.debian.org/security/2016/dsa-3673

Url: http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00024.html

Url: http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00013.html

Url: http://rhn.redhat.com/errata/RHSA-2016-2957.html

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

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

Url: http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00005.html

Url: http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00021.html

Url: http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html

Url: https://www.mend.io/vulnerability-database/CVE-2016-2178

Severity Score

5.5

Weakness Type (CWE)

Information Leak / Disclosure

CWE-200

Observable Discrepancy

CWE-203

CVSS v3.1

Base Score:	5.5
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

Base Score:	2.1
Access Vector (AV):	LOCAL
Access Complexity (AC):	LOW
Authentication (AU):	NONE
Confidentiality (C):	PARTIAL
Integrity (I):	NONE
Availability (A):	NONE
Additional information:

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