CVE-2016-2178
First published: Mon May 23 2016(Updated: )
It was discovered that OpenSSL did not always use constant time operations when computing Digital Signature Algorithm (DSA) signatures. A local attacker could possibly use this flaw to obtain a private DSA key belonging to another user or service running on the same system.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/jbcs-httpd24-httpd | <0:2.4.23-102.jbcs.el6 | 0:2.4.23-102.jbcs.el6 |
| redhat/jbcs-httpd24-nghttp2 | <0:1.12.0-9.jbcs.el6 | 0:1.12.0-9.jbcs.el6 |
| redhat/jbcs-httpd24-openssl | <1:1.0.2h-12.jbcs.el6 | 1:1.0.2h-12.jbcs.el6 |
| redhat/jbcs-httpd24-httpd | <0:2.4.23-102.jbcs.el7 | 0:2.4.23-102.jbcs.el7 |
| redhat/jbcs-httpd24-nghttp2 | <0:1.12.0-9.jbcs.el7 | 0:1.12.0-9.jbcs.el7 |
| redhat/jbcs-httpd24-openssl | <1:1.0.2h-12.jbcs.el7 | 1:1.0.2h-12.jbcs.el7 |
| redhat/openssl | <0:1.0.1e-48.el6_8.3 | 0:1.0.1e-48.el6_8.3 |
| redhat/openssl | <1:1.0.1e-51.el7_2.7 | 1:1.0.1e-51.el7_2.7 |
| redhat/jbcs-httpd24-openssl | <1:1.0.2h-13.jbcs.el6 | 1:1.0.2h-13.jbcs.el6 |
| redhat/jbcs-httpd24-openssl | <1:1.0.2h-13.jbcs.el7 | 1:1.0.2h-13.jbcs.el7 |
| redhat/openssl | <1.0.1 | 1.0.1 |
| redhat/openssl | <1.0.2 | 1.0.2 |
| OpenSSL | =1.0.1 | |
| OpenSSL | =1.0.1a | |
| OpenSSL | =1.0.1b | |
| OpenSSL | =1.0.1c | |
| OpenSSL | =1.0.1d | |
| OpenSSL | =1.0.1e | |
| OpenSSL | =1.0.1f | |
| OpenSSL | =1.0.1g | |
| OpenSSL | =1.0.1h | |
| OpenSSL | =1.0.1i | |
| OpenSSL | =1.0.1j | |
| OpenSSL | =1.0.1k | |
| OpenSSL | =1.0.1l | |
| OpenSSL | =1.0.1m | |
| OpenSSL | =1.0.1n | |
| OpenSSL | =1.0.1o | |
| OpenSSL | =1.0.1p | |
| OpenSSL | =1.0.1q | |
| OpenSSL | =1.0.1r | |
| OpenSSL | =1.0.1s | |
| OpenSSL | =1.0.1t | |
| OpenSSL | =1.0.2 | |
| OpenSSL | =1.0.2a | |
| OpenSSL | =1.0.2b | |
| OpenSSL | =1.0.2c | |
| OpenSSL | =1.0.2d | |
| OpenSSL | =1.0.2e | |
| OpenSSL | =1.0.2f | |
| OpenSSL | =1.0.2g | |
| OpenSSL | =1.0.2h | |
| Oracle Linux | =5 | |
| Oracle Linux | =6 | |
| Oracle Linux | =7 | |
| Oracle Solaris and Zettabyte File System (ZFS) | =10 | |
| Oracle Solaris and Zettabyte File System (ZFS) | =11.3 | |
| SUSE Linux Enterprise Server | =12.0 | |
| Node.js | >=0.10.0<0.10.47 | |
| Node.js | >=0.12.0<0.12.16 | |
| Node.js | >=4.0.0<=4.1.2 | |
| Node.js | >=4.2.0<4.6.0 | |
| Node.js | >=5.0.0<6.7.0 | |
| Debian | =8.0 | |
| Ubuntu | =12.04 | |
| Ubuntu | =14.04 | |
| Ubuntu | =16.04 | |
| debian/openssl | 1.1.1w-0+deb11u1 1.1.1w-0+deb11u2 3.0.15-1~deb12u1 3.0.14-1~deb12u2 3.4.1-1 |
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2016-2178 https://nvd.nist.gov/vuln/detail/CVE-2016-2178 http://eprint.iacr.org/2016/594 https://www.openssl.org/news/secadv/20160922.txt
- https://bugzilla.redhat.com/show_bug.cgi?id=1343400
- https://access.redhat.com/errata/RHSA-2017:0193
- https://access.redhat.com/errata/RHSA-2017:0194
- https://access.redhat.com/errata/RHSA-2016:1940
- https://access.redhat.com/errata/RHSA-2016:2957
- https://access.redhat.com/errata/RHSA-2017:1659
- https://access.redhat.com/errata/RHSA-2017:1658
- https://access.redhat.com/security/cve/CVE-2016-2178
- 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://bto.bluecoat.com/security-advisory/sa132
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
- https://git.openssl.org/?p=openssl.git;a=commit;h=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://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03856en_us
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-c05302448
- https://kc.mcafee.com/corporate/index?page=content&id=SB10215
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en&docId=emr_na-hpesbhf03856en_us
- https://launchpad.net/bugs/cve/CVE-2016-2178
- https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=399944622df7bd81af62e67ea967c470534090e2
- https://git.openssl.org/?p=openssl.git;a=commitdiff;h=d168705e11526a4b487640c7cac5b53ee3646cbc
- https://git.openssl.org/?p=openssl.git;a=commitdiff;h=3681a4558c13198944e6f7f149c4be188e076e14
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1343403
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1343401
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1343402
- http://seclists.org/oss-sec/2016/q2/493
- http://eprint.iacr.org/2016/594
- https://www.openssl.org/news/secadv/20160922.txt
- https://rhn.redhat.com/errata/RHSA-2016-1940.html
- https://rhn.redhat.com/errata/RHSA-2016-2957.html
- https://security-tracker.debian.org/tracker/CVE-2016-2178
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2178
- https://nvd.nist.gov/vuln/detail/CVE-2016-2178
- https://ubuntu.com/security/CVE-2016-2178
Parent vulnerabilities
(Appears in the following advisories)
Frequently Asked Questions
What is the severity of CVE-2016-2178?
CVE-2016-2178 is rated as a high severity vulnerability due to its potential to allow attackers to obtain a private DSA key.
How do I fix CVE-2016-2178?
To fix CVE-2016-2178, you should upgrade to the patched versions of OpenSSL and related packages as specified in the security advisories.
Who is affected by CVE-2016-2178?
CVE-2016-2178 affects systems using certain versions of OpenSSL that do not implement constant time operations for DSA signatures.
What types of attacks can be performed using CVE-2016-2178?
A local attacker can exploit CVE-2016-2178 to potentially gain access to private DSA keys belonging to other users or services on the same system.
Are there any known exploits for CVE-2016-2178?
While there are no specific public exploits reported for CVE-2016-2178, the nature of the vulnerability suggests it could be leveraged in targeted attacks.
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