Vulnerability Report

CVE-2016-2178

Title: Openssl Information Disclosure

Information Disclosure

Proof Of Concept

No public PoC currently indexed for CVE-2016-2178.

CWE Category CWE-203
Published Date Jun 20, 2016
Modified Date May 06, 2026
Exploit Status Not Found
Score 5.5 CVSS v3.1
Exploit Probability (EPSS)
0.19%

Vulnerability Summary

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 constant-time operations, which makes it easier for local users to discover a DSA private key via a timing side-channel attack.

Impacted Vendors

Reference Links

http://eprint.iacr.org/2016/594.pdf http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759 http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00022.html http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00023.html http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00024.html http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00031.html http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00005.html http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00011.html http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00012.html http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00013.html http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00021.html http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00029.html http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00010.html http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00011.html http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00032.html http://rhn.redhat.com/errata/RHSA-2016-1940.html http://rhn.redhat.com/errata/RHSA-2016-2957.html http://rhn.redhat.com/errata/RHSA-2017-1659.html http://seclists.org/fulldisclosure/2017/Jul/31 http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160927-openssl http://www-01.ibm.com/support/docview.wss?uid=swg21995039 http://www.debian.org/security/2016/dsa-3673 http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20170322-01-openssl-en http://www.openwall.com/lists/oss-security/2016/06/08/10 http://www.openwall.com/lists/oss-security/2016/06/08/11 http://www.openwall.com/lists/oss-security/2016/06/08/12 http://www.openwall.com/lists/oss-security/2016/06/08/2 http://www.openwall.com/lists/oss-security/2016/06/08/4 http://www.openwall.com/lists/oss-security/2016/06/08/5 http://www.openwall.com/lists/oss-security/2016/06/08/6 http://www.openwall.com/lists/oss-security/2016/06/08/7 http://www.openwall.com/lists/oss-security/2016/06/08/8 http://www.openwall.com/lists/oss-security/2016/06/09/2 http://www.openwall.com/lists/oss-security/2016/06/09/8 http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html http://www.securityfocus.com/bid/91081 http://www.securitytracker.com/id/1036054 http://www.splunk.com/view/SP-CAAAPSV http://www.splunk.com/view/SP-CAAAPUE http://www.ubuntu.com/usn/USN-3087-1 http://www.ubuntu.com/usn/USN-3087-2 https://access.redhat.com/errata/RHSA-2017:0193 https://access.redhat.com/errata/RHSA-2017:0194 https://access.redhat.com/errata/RHSA-2017:1658 https://bto.bluecoat.com/security-advisory/sa132 https://bugzilla.redhat.com/show_bug.cgi?id=1343400 https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=399944622df7bd81af62e67ea967c470534090e2 https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-c05302448 https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05302448 https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40312 https://kc.mcafee.com/corporate/index?page=content&id=SB10215 https://nodejs.org/en/blog/vulnerability/september-2016-security-releases/ https://security.FreeBSD.org/advisories/FreeBSD-SA-16:26.openssl.asc https://security.gentoo.org/glsa/201612-16 https://support.f5.com/csp/article/K53084033 https://support.hpe.com/hpsc/doc/public/display?docLocale=en&docId=emr_na-hpesbhf03856en_us https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03856en_us https://www.arista.com/en/support/advisories-notices/security-advisories/1749-security-advisory-24 https://www.tenable.com/security/tns-2016-16 https://www.tenable.com/security/tns-2016-20 https://www.tenable.com/security/tns-2016-21 http://eprint.iacr.org/2016/594.pdf http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759 http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00022.html http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00023.html http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00024.html http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00031.html http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00005.html http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00011.html http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00012.html http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00013.html http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00021.html http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00029.html http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00010.html http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00011.html http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00032.html http://rhn.redhat.com/errata/RHSA-2016-1940.html http://rhn.redhat.com/errata/RHSA-2016-2957.html http://rhn.redhat.com/errata/RHSA-2017-1659.html http://seclists.org/fulldisclosure/2017/Jul/31 http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160927-openssl http://www-01.ibm.com/support/docview.wss?uid=swg21995039 http://www.debian.org/security/2016/dsa-3673 http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20170322-01-openssl-en http://www.openwall.com/lists/oss-security/2016/06/08/10 http://www.openwall.com/lists/oss-security/2016/06/08/11 http://www.openwall.com/lists/oss-security/2016/06/08/12 http://www.openwall.com/lists/oss-security/2016/06/08/2 http://www.openwall.com/lists/oss-security/2016/06/08/4 http://www.openwall.com/lists/oss-security/2016/06/08/5 http://www.openwall.com/lists/oss-security/2016/06/08/6 http://www.openwall.com/lists/oss-security/2016/06/08/7 http://www.openwall.com/lists/oss-security/2016/06/08/8 http://www.openwall.com/lists/oss-security/2016/06/09/2 http://www.openwall.com/lists/oss-security/2016/06/09/8 http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html http://www.securityfocus.com/bid/91081 http://www.securitytracker.com/id/1036054 http://www.splunk.com/view/SP-CAAAPSV http://www.splunk.com/view/SP-CAAAPUE http://www.ubuntu.com/usn/USN-3087-1 http://www.ubuntu.com/usn/USN-3087-2 https://access.redhat.com/errata/RHSA-2017:0193 https://access.redhat.com/errata/RHSA-2017:0194 https://access.redhat.com/errata/RHSA-2017:1658 https://bto.bluecoat.com/security-advisory/sa132 https://bugzilla.redhat.com/show_bug.cgi?id=1343400 https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=399944622df7bd81af62e67ea967c470534090e2 https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-c05302448 https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05302448 https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40312 https://kc.mcafee.com/corporate/index?page=content&id=SB10215 https://nodejs.org/en/blog/vulnerability/september-2016-security-releases/ https://security.FreeBSD.org/advisories/FreeBSD-SA-16:26.openssl.asc https://security.gentoo.org/glsa/201612-16 https://support.f5.com/csp/article/K53084033 https://support.hpe.com/hpsc/doc/public/display?docLocale=en&docId=emr_na-hpesbhf03856en_us https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03856en_us https://www.arista.com/en/support/advisories-notices/security-advisories/1749-security-advisory-24 https://www.tenable.com/security/tns-2016-16 https://www.tenable.com/security/tns-2016-20 https://www.tenable.com/security/tns-2016-21
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
5.5
Attack Vector
LOCAL
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS v2.0
Source Entity [email protected]
Severity LOW
2.1
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:L/AC:L/Au:N/C:P/I:N/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2016-2178 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector LOCAL
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected Stack

No specific products linked.