Vulnerability CVE-2019-0199


Published: 2019-04-10

Description:
The HTTP/2 implementation in Apache Tomcat 9.0.0.M1 to 9.0.14 and 8.5.0 to 8.5.37 accepted streams with excessive numbers of SETTINGS frames and also permitted clients to keep streams open without reading/writing request/response data. By keeping streams open for requests that utilised the Servlet API's blocking I/O, clients were able to cause server-side threads to block eventually leading to thread exhaustion and a DoS.

Type:

CWE-400

(Uncontrolled Resource Consumption ('Resource Exhaustion'))

Vendor: Apache
Product: Tomcat 
Version:
9.0.9
9.0.8
9.0.7
9.0.6
9.0.5
9.0.4
9.0.3
9.0.2
9.0.14
9.0.13
9.0.12
9.0.11
9.0.10
9.0.1
9.0.0
8.5.9
8.5.8
8.5.7
8.5.6
8.5.5
8.5.4
8.5.37
8.5.36
8.5.35
8.5.34
8.5.33
8.5.32
8.5.31
8.5.30
8.5.3
8.5.29
8.5.28
8.5.27
8.5.26
8.5.25
8.5.24
8.5.23
8.5.22
8.5.21
8.5.20
8.5.2
8.5.19
8.5.18
8.5.17
8.5.16
8.5.15
8.5.14
8.5.13
8.5.12
8.5.11
8.5.10
8.5.1
8.5.0

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial

 References:
https://lists.apache.org/thread.html/1dd0a59c1295cc08ce4c9e7edae5ad2268acc9ba55adcefa0532e5ba@%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/6af47120905aa7d8fe12f42e8ff2284fb338ba141d3b77b8c7cb61b3@%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/88855876c33f2f9c532ffb75bfee570ccf0b17ffa77493745af9a17a@%3Cdev.tomcat.apache.org%3E
https://lists.apache.org/thread.html/e1b0b273b6e8ddcc72c9023bc2394b1276fc72664144bf21d0a87995@%3Cannounce.tomcat.apache.org%3E
https://lists.apache.org/thread.html/e56886e1bac9319ecce81b3612dd7a1a43174a3a741a1c805e16880e@%3Ccommits.tomee.apache.org%3E
https://lists.apache.org/thread.html/e85e83e9954f169bbb77b44baae5a33d8de878df557bb32b7f793661@%3Cdev.tomcat.apache.org%3E
https://security.netapp.com/advisory/ntap-20190419-0001/

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