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Vulnerability Details : 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.
Publish Date : 2016-06-19 Last Update Date : 2017-08-08
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- CVSS Scores & Vulnerability Types

CVSS Score
2.1
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact None (There is no impact to the availability of the system.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Obtain Information
CWE ID 200

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2016:1940: openssl security update (Important) oval:com.redhat.rhsa:def:20161940 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2016-2178

# Product Type Vendor Product Version Update Edition Language
1 Application Openssl Openssl 1.0.1b Version Details Vulnerabilities
2 Application Openssl Openssl 1.0.1s Version Details Vulnerabilities
3 Application Openssl Openssl 1.0.1n Version Details Vulnerabilities
4 Application Openssl Openssl 1.0.1i Version Details Vulnerabilities
5 Application Openssl Openssl 1.0.1c Version Details Vulnerabilities
6 Application Openssl Openssl 1.0.1t Version Details Vulnerabilities
7 Application Openssl Openssl 1.0.1o Version Details Vulnerabilities
8 Application Openssl Openssl 1.0.1j Version Details Vulnerabilities
9 Application Openssl Openssl 1.0.1d Version Details Vulnerabilities
10 Application Openssl Openssl 1.0.1p Version Details Vulnerabilities
11 Application Openssl Openssl 1.0.1k Version Details Vulnerabilities
12 Application Openssl Openssl 1.0.1e Version Details Vulnerabilities
13 Application Openssl Openssl 1.0.1 Version Details Vulnerabilities
14 Application Openssl Openssl 1.0.1q Version Details Vulnerabilities
15 Application Openssl Openssl 1.0.1l Version Details Vulnerabilities
16 Application Openssl Openssl 1.0.1f Version Details Vulnerabilities
17 Application Openssl Openssl 1.0.1a Version Details Vulnerabilities
18 Application Openssl Openssl 1.0.1r Version Details Vulnerabilities
19 Application Openssl Openssl 1.0.1m Version Details Vulnerabilities
20 Application Openssl Openssl 1.0.1g Version Details Vulnerabilities
21 Application Openssl Openssl 1.0.1h Version Details Vulnerabilities
22 Application Openssl Openssl 1.0.2d Version Details Vulnerabilities
23 Application Openssl Openssl 1.0.2e Version Details Vulnerabilities
24 Application Openssl Openssl 1.0.2 Version Details Vulnerabilities
25 Application Openssl Openssl 1.0.2f Version Details Vulnerabilities
26 Application Openssl Openssl 1.0.2a Version Details Vulnerabilities
27 Application Openssl Openssl 1.0.2g Version Details Vulnerabilities
28 Application Openssl Openssl 1.0.2b Version Details Vulnerabilities
29 Application Openssl Openssl 1.0.2h Version Details Vulnerabilities
30 Application Openssl Openssl 1.0.2c Version Details Vulnerabilities
31 OS Oracle Linux 5 Version Details Vulnerabilities
32 OS Oracle Linux 6.0 Version Details Vulnerabilities
33 OS Oracle Linux 7.0 Version Details Vulnerabilities
34 OS Oracle Solaris 10 Version Details Vulnerabilities
35 OS Oracle Solaris 11.3 Version Details Vulnerabilities
36 OS Suse Linux Enterprise 12.0 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Openssl Openssl 30
Oracle Linux 3
Oracle Solaris 2
Suse Linux Enterprise 1

- References For CVE-2016-2178

https://bto.bluecoat.com/security-advisory/sa132 CONFIRM
http://www.securitytracker.com/id/1036054
SECTRACK 1036054
http://www.splunk.com/view/SP-CAAAPSV CONFIRM
http://www.openwall.com/lists/oss-security/2016/06/09/8
MLIST [oss-security] 20160609 Re: CVE-2016-2178: OpenSSL DSA follows a non-constant time codepath for certain operations
http://www-01.ibm.com/support/docview.wss?uid=swg21995039 CONFIRM
https://www.openssl.org/news/vulnerabilities.html#y2017
https://security.gentoo.org/glsa/201612-16
GENTOO GLSA-201612-16
http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html CONFIRM
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05302448 CONFIRM
https://git.openssl.org/?p=openssl.git;a=commit;h=399944622df7bd81af62e67ea967c470534090e2 CONFIRM
https://bugzilla.redhat.com/show_bug.cgi?id=1343400 CONFIRM
http://www.securityfocus.com/bid/91081
BID 91081 OpenSSL CVE-2016-2178 Side Channel Attack Information Disclosure Vulnerability Release Date:2017-05-02
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html CONFIRM
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40312 CONFIRM
https://www.tenable.com/security/tns-2016-16 CONFIRM
http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html CONFIRM
http://eprint.iacr.org/2016/594.pdf
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html CONFIRM
http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html CONFIRM
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759 CONFIRM
https://nodejs.org/en/blog/vulnerability/september-2016-security-releases/ CONFIRM
http://www.splunk.com/view/SP-CAAAPUE CONFIRM
http://www.openwall.com/lists/oss-security/2016/06/08/2
MLIST [oss-security] 20160608 CVE-2016-2178: OpenSSL DSA follows a non-constant time codepath for certain operations
http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00013.html
SUSE SUSE-SU-2016:2470

- Metasploit Modules Related To CVE-2016-2178

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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