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Vulnerability Details : CVE-2017-3736

There is a carry propagating bug in the x86_64 Montgomery squaring procedure in OpenSSL before 1.0.2m and 1.1.0 before 1.1.0g. No EC algorithms are affected. Analysis suggests that attacks against RSA and DSA as a result of this defect would be very difficult to perform and are not believed likely. Attacks against DH are considered just feasible (although very difficult) because most of the work necessary to deduce information about a private key may be performed offline. The amount of resources required for such an attack would be very significant and likely only accessible to a limited number of attackers. An attacker would additionally need online access to an unpatched system using the target private key in a scenario with persistent DH parameters and a private key that is shared between multiple clients. This only affects processors that support the BMI1, BMI2 and ADX extensions like Intel Broadwell (5th generation) and later or AMD Ryzen.
Publish Date : 2017-11-02 Last Update Date : 2018-10-16
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- CVSS Scores & Vulnerability Types

CVSS Score
4.0
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 Single system (The vulnerability requires an attacker to be logged into the system (such as at a command line or via a desktop session or web interface).)
Gained Access None
Vulnerability Type(s) Obtain Information
CWE ID 200

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2018:0998: openssl security and bug fix update (Moderate) oval:com.redhat.rhsa:def:20180998 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-2017-3736

# Product Type Vendor Product Version Update Edition Language
1 Application Openssl Openssl 1.0.2l Version Details Vulnerabilities
2 Application Openssl Openssl 1.1.0f Version Details Vulnerabilities
3 Application Openssl Openssl 1.1.0a Version Details Vulnerabilities
4 Application Openssl Openssl 1.1.0b Version Details Vulnerabilities
5 Application Openssl Openssl 1.1.0c Version Details Vulnerabilities
6 Application Openssl Openssl 1.1.0d Version Details Vulnerabilities
7 Application Openssl Openssl 1.1.0e Version Details Vulnerabilities
8 Application Openssl Openssl 1.1.0 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Openssl Openssl 8

- References For CVE-2017-3736

http://www.securityfocus.com/bid/101666
BID 101666 OpenSSL CVE-2017-3736 Information Disclosure Vulnerability Release Date:2018-10-15
https://security.netapp.com/advisory/ntap-20180117-0002/ CONFIRM
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbst03881en_us CONFIRM
https://www.debian.org/security/2017/dsa-4017
DEBIAN DSA-4017
http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html CONFIRM
https://access.redhat.com/errata/RHSA-2018:2713
REDHAT RHSA-2018:2713
https://www.debian.org/security/2017/dsa-4018
DEBIAN DSA-4018
https://security.gentoo.org/glsa/201712-03
GENTOO GLSA-201712-03
https://security.netapp.com/advisory/ntap-20171107-0002/ CONFIRM
https://access.redhat.com/errata/RHSA-2018:2575
REDHAT RHSA-2018:2575
https://access.redhat.com/errata/RHSA-2018:2568
REDHAT RHSA-2018:2568
https://security.FreeBSD.org/advisories/FreeBSD-SA-17:11.openssl.asc
FREEBSD FreeBSD-SA-17:11
https://access.redhat.com/errata/RHSA-2018:2187
REDHAT RHSA-2018:2187
https://access.redhat.com/errata/RHSA-2018:2186
REDHAT RHSA-2018:2186
https://access.redhat.com/errata/RHSA-2018:2185
REDHAT RHSA-2018:2185
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html CONFIRM
https://www.tenable.com/security/tns-2017-14 CONFIRM
https://www.openssl.org/news/secadv/20171102.txt CONFIRM
https://access.redhat.com/errata/RHSA-2018:0998
REDHAT RHSA-2018:0998
https://github.com/openssl/openssl/commit/4443cf7aa0099e5ce615c18cee249fff77fb0871
http://www.securitytracker.com/id/1039727
SECTRACK 1039727
http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html CONFIRM
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html CONFIRM
https://www.tenable.com/security/tns-2017-15 CONFIRM

- Metasploit Modules Related To CVE-2017-3736

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


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