CVE-2017-3736 Detail

Current Description

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.


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  6.5 MEDIUM
Vector:  CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html Patch  Third Party Advisory 
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html Patch  Third Party Advisory 
http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html Patch  Third Party Advisory 
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html Patch  Third Party Advisory 
http://www.securityfocus.com/bid/101666 Third Party Advisory  VDB Entry 
http://www.securitytracker.com/id/1039727 Third Party Advisory  VDB Entry 
https://access.redhat.com/errata/RHSA-2018:0998 Third Party Advisory 
https://access.redhat.com/errata/RHSA-2018:2185 Third Party Advisory 
https://access.redhat.com/errata/RHSA-2018:2186 Third Party Advisory 
https://access.redhat.com/errata/RHSA-2018:2187 Third Party Advisory 
https://access.redhat.com/errata/RHSA-2018:2568 Third Party Advisory 
https://access.redhat.com/errata/RHSA-2018:2575 Third Party Advisory 
https://access.redhat.com/errata/RHSA-2018:2713 Third Party Advisory 
https://github.com/openssl/openssl/commit/4443cf7aa0099e5ce615c18cee249fff77fb0871 Third Party Advisory 
https://security.FreeBSD.org/advisories/FreeBSD-SA-17:11.openssl.asc Third Party Advisory 
https://security.gentoo.org/glsa/201712-03 Third Party Advisory 
https://security.netapp.com/advisory/ntap-20171107-0002/ Issue Tracking  Third Party Advisory 
https://security.netapp.com/advisory/ntap-20180117-0002/ Third Party Advisory 
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbst03881en_us Third Party Advisory 
https://www.debian.org/security/2017/dsa-4017 Issue Tracking  Third Party Advisory 
https://www.debian.org/security/2017/dsa-4018 Issue Tracking  Third Party Advisory 
https://www.openssl.org/news/secadv/20171102.txt Issue Tracking  Vendor Advisory 
https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html
https://www.oracle.com/technetwork/security-advisory/cpujul2019-5072835.html
https://www.tenable.com/security/tns-2017-14 Issue Tracking  Third Party Advisory 
https://www.tenable.com/security/tns-2017-15 Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor cwe source acceptance level NIST  

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Change History

24 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2017-3736
NVD Published Date:
11/02/2017
NVD Last Modified:
04/23/2019
Source:
MITRE