CVE-2016-2178
Moderate
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.
Exploit probability
1.2%
Published
June 20, 2016
Required by
Not available
Last source change
July 8, 2026
02 / AFFECTED SOFTWARE
Affected packages
25 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Open Source Vulnerabilities
CVE-2016-2178
View original source
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.
05 / REFERENCES
Further evidence
- 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