Executive Summary

Informations
Name CVE-2019-17638 First vendor Publication 2020-07-09
Vendor Cve Last vendor Modification 2020-07-21

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L
Overall CVSS Score 9.4
Base Score 9.4 Environmental Score 9.4
impact SubScore 5.5 Temporal Score 9.4
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact Low
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 7.5 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

In Eclipse Jetty, versions 9.4.27.v20200227 to 9.4.29.v20200521, in case of too large response headers, Jetty throws an exception to produce an HTTP 431 error. When this happens, the ByteBuffer containing the HTTP response headers is released back to the ByteBufferPool twice. Because of this double release, two threads can acquire the same ByteBuffer from the pool and while thread1 is about to use the ByteBuffer to write response1 data, thread2 fills the ByteBuffer with response2 data. Thread1 then proceeds to write the buffer that now contains response2 data. This results in client1, which issued request1 and expects responses, to see response2 which could contain sensitive data belonging to client2 (HTTP session ids, authentication credentials, etc.).

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17638

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-672 Operation on a Resource after Expiration or Release

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 3

Sources (Detail)

Source Url
CONFIRM https://bugs.eclipse.org/bugs/show_bug.cgi?id=564984

Alert History

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0
1
Date Informations
2020-07-21 21:23:01
  • Multiple Updates
2020-07-10 00:22:41
  • First insertion