CVE - CVE-2017-3736

CVE-ID
CVE-2017-3736	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://github.com/openssl/openssl/commit/4443cf7aa0099e5ce615c18cee249fff77fb0871 CONFIRM:https://www.openssl.org/news/secadv/20171102.txt CONFIRM:https://security.netapp.com/advisory/ntap-20171107-0002/ CONFIRM:https://www.tenable.com/security/tns-2017-14 CONFIRM:https://www.tenable.com/security/tns-2017-15 CONFIRM:http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html CONFIRM:https://security.netapp.com/advisory/ntap-20180117-0002/ CONFIRM:http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html CONFIRM:http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html CONFIRM:https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbst03881en_us CONFIRM:http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html DEBIAN:DSA-4017 URL:https://www.debian.org/security/2017/dsa-4017 DEBIAN:DSA-4018 URL:https://www.debian.org/security/2017/dsa-4018 FREEBSD:FreeBSD-SA-17:11 URL:https://security.FreeBSD.org/advisories/FreeBSD-SA-17:11.openssl.asc GENTOO:GLSA-201712-03 URL:https://security.gentoo.org/glsa/201712-03 REDHAT:RHSA-2018:0998 URL:https://access.redhat.com/errata/RHSA-2018:0998 REDHAT:RHSA-2018:2185 URL:https://access.redhat.com/errata/RHSA-2018:2185 REDHAT:RHSA-2018:2186 URL:https://access.redhat.com/errata/RHSA-2018:2186 REDHAT:RHSA-2018:2187 URL:https://access.redhat.com/errata/RHSA-2018:2187 REDHAT:RHSA-2018:2568 URL:https://access.redhat.com/errata/RHSA-2018:2568 REDHAT:RHSA-2018:2575 URL:https://access.redhat.com/errata/RHSA-2018:2575 REDHAT:RHSA-2018:2713 URL:https://access.redhat.com/errata/RHSA-2018:2713 BID:101666 URL:http://www.securityfocus.com/bid/101666 SECTRACK:1039727 URL:http://www.securitytracker.com/id/1039727
Assigning CNA
OpenSSL Software Foundation
Date Entry Created
20161216	Disclaimer: The entry creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20161216)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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