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: PatternsNo specific attack patterns mapped.
Likelihood
Severity
Page /
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.