CVE-2019-17638 Detail

Current Description

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.).


View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  9.4 CRITICAL
Vector:  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L


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Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://bugs.eclipse.org/bugs/show_bug.cgi?id=564984 Vendor Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-672 Operation on a Resource after Expiration or Release cwe source acceptance level NIST   Reference acceptance level Eclipse Foundation  
CWE-675 Duplicate Operations on Resource Reference acceptance level Eclipse Foundation  

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Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-17638
NVD Published Date:
07/09/2020
NVD Last Modified:
07/21/2020
Source:
MITRE