CVE-2017-3736 Details
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.
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Exploit prediction scoring system (EPSS) score for CVE-2017-3736
EPSS (Exploit Prediction Scoring System): EPSS predicts the likelihood that a vulnerability will be exploited in the wild. A higher percentage means a greater chance of an exploit occurring. The EPSS model produces a probability score between 0 and 1 (0 and 100%).
2.99 Probability of exploitation activity being observed over the next 30 days (86th percentile)
CVSS score for CVE-2017-3736
CVSS (Common Vulnerability Scoring System): An open framework owned and managed by FIRST.Org, Inc. that assigns a numerical score from 0 to 10 to software vulnerabilities to indicate their severity.
6.5 Medium
Products affected by CVE-2017-3736

CVE-2017-3736 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
US 56,164 28.10%
JP 27,666 13.84%
DE 10,508 5.26%
IT 10,210 5.11%
KR 8,059 4.03%
BR 6,236 3.12%
CN 6,112 3.06%
IN 5,930 2.97%
GB 5,381 2.69%
FR 5,288 2.65%

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CVE-2017-3736 Industry Footprint

Top 10 Identified Industries

*Service provider organizations (typically Technology and Telecommunications) are disproportionally represented in the results given their upstream ownership of end-user infrastructure. See our FAQs.

Industry* Observations Percentage
Technology 117,459 78.91%
Telecommunications 22,563 15.16%
Education 3,606 2.42%
Government/Politics 1,721 1.16%
Business Services 686 0.46%
Manufacturing 377 0.25%
Food Production 312 0.21%
Utilities 298 0.20%
Finance 241 0.16%
Media/Entertainment 236 0.16%

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