CVE-2017-16671 Details
A Buffer Overflow issue was discovered in Asterisk Open Source 13 before 13.18.1, 14 before 14.7.1, and 15 before 15.1.1 and Certified Asterisk 13.13 before 13.13-cert7. No size checking is done when setting the user field for Party B on a CDR. Thus, it is possible for someone to use an arbitrarily large string and write past the end of the user field storage buffer. NOTE: this is different from CVE-2017-7617, which was only about the Party A buffer.
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Exploit prediction scoring system (EPSS) score for CVE-2017-16671
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%).
3.64 Probability of exploitation activity being observed over the next 30 days (87th percentile)
CVSS score for CVE-2017-16671
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.
8.8 High
Products affected by CVE-2017-16671
Asterisk 13.3.2
Asterisk 13.4.0
Asterisk 13.5.0
Asterisk 13.6.0
Asterisk 13.7.0
DVE Score by Bitsight AI
DVE scores complement traditional static scoring systems like CVSS with Bitsight AI powered real-time threat intelligence and underground cyber criminal activity so that security teams can reduce alert fatigue and focus on vulnerabilities most likely to be exploited.
Not available
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CVE-2017-16671 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
US 671 26.37%
MX 171 6.72%
BR 117 4.60%
CN 100 3.93%
RU 86 3.38%
CA 69 2.71%
GB 69 2.71%
IT 69 2.71%
FR 63 2.48%
TW 61 2.40%

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CVE-2017-16671 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
Telecommunications 682 50.71%
Technology 624 46.39%
Utilities 8 0.59%
Manufacturing 6 0.45%
Finance 4 0.30%
Retail 4 0.30%
Government/Politics 3 0.22%
Education 3 0.22%
Real Estate 2 0.15%
Tourism/Hospitality 2 0.15%

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