Bug 1864680 (CVE-2019-17638) - CVE-2019-17638 jetty: double release of resource can lead to information disclosure
Summary: CVE-2019-17638 jetty: double release of resource can lead to information disc...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2019-17638
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1864683 1875257 1875258 1875259 1875260 1875261 1877292
Blocks: 1864684
TreeView+ depends on / blocked
 
Reported: 2020-08-03 19:43 UTC by Guilherme de Almeida Suckevicz
Modified: 2021-02-16 19:35 UTC (History)
41 users (show)

Fixed In Version: jetty-9.4.30.v20200611
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Clone Of:
Environment:
Last Closed: 2020-09-30 20:21:19 UTC
Embargoed:

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Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2020:3841 0 None None None 2020-09-30 18:54:56 UTC
Red Hat Product Errata RHSA-2020:4220 0 None None None 2020-10-13 08:04:19 UTC
Red Hat Product Errata RHSA-2020:4223 0 None None None 2020-10-22 10:48:33 UTC
Red Hat Product Errata RHSA-2020:5568 0 None None None 2020-12-16 12:15:05 UTC

Description Guilherme de Almeida Suckevicz 2020-08-03 19:43:18 UTC 
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.).

References:
https://bugs.eclipse.org/bugs/show_bug.cgi?id=564984
https://github.com/eclipse/jetty.project/issues/4936
Comment 1 Guilherme de Almeida Suckevicz 2020-08-03 19:43:41 UTC 
Created jetty tracking bugs for this issue:

Affects: fedora-all [bug 1864683]
Comment 8 Yadnyawalk Tale 2020-08-11 12:29:47 UTC 
Red Hat Satellite 5 was shipping jetty/nutch however it is EOL from March 31, 2020. Red Hat do not ship those components Satellite 6 onward.
Reference: https://access.redhat.com/support/policy/updates/satellite
Comment 11 Przemyslaw Roguski 2020-09-08 15:42:43 UTC 
External References:

https://bugs.eclipse.org/bugs/show_bug.cgi?id=564984
https://www.jenkins.io/security/advisory/2020-08-17/
Comment 12 errata-xmlrpc 2020-09-30 18:54:53 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.5

Via RHSA-2020:3841 https://access.redhat.com/errata/RHSA-2020:3841
Comment 13 Product Security DevOps Team 2020-09-30 20:21:19 UTC 
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2019-17638
Comment 14 errata-xmlrpc 2020-10-13 08:04:16 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 4.4

Via RHSA-2020:4220 https://access.redhat.com/errata/RHSA-2020:4220
Comment 17 errata-xmlrpc 2020-10-22 10:48:29 UTC 
This issue has been addressed in the following products:

  Red Hat OpenShift Container Platform 3.11

Via RHSA-2020:4223 https://access.redhat.com/errata/RHSA-2020:4223
Comment 18 errata-xmlrpc 2020-12-16 12:14:53 UTC 
This issue has been addressed in the following products:

  Red Hat Fuse 7.8.0

Via RHSA-2020:5568 https://access.redhat.com/errata/RHSA-2020:5568
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