CVE-2019-17638 Details
Versions 9.4.27.v20200227 to 9.4.29.v20200521 of Eclipse Jetty with large response headers produce an HTTP 431 error. This is an exception by Jetty where the ByteBuffer containing the HTTP response headers is released back to the ByteBufferPool twice. This double release can cause sensitive data (HTTP session IDs, authentication credentials, etc.) belonging to other users to be exposed in the server response.
View at NVD
Exploit prediction scoring system (EPSS) score for CVE-2019-17638
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%).
25.78 Probability of exploitation activity being observed over the next 30 days (96th percentile)
CVSS score for CVE-2019-17638
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.
9.4 Critical
Products affected by CVE-2019-17638
Jetty 9.4.27
Jetty 9.4.28
Jetty 9.4.29
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-2019-17638 Global Footprint

Top 10 Identified Countries

Country Observations Percentage
US 441 26.45%
CN 216 12.96%
DE 139 8.34%
RU 110 6.60%
NL 79 4.74%
IE 70 4.20%
JP 61 3.66%
FR 58 3.48%
IN 58 3.48%
BR 51 3.06%

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CVE-2019-17638 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 1,050 83.67%
Telecommunications 164 13.07%
Education 12 0.96%
Retail 9 0.72%
Healthcare/Wellness 8 0.64%
Media/Entertainment 3 0.24%
Manufacturing 2 0.16%
Utilities 1 0.08%
Tourism/Hospitality 1 0.08%
Aerospace/Defense 1 0.08%

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