Apache Tomcat: Multiple vulnerabilities

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2020.4294
         CVE-2020-17527 Apache Tomcat HTTP/2 Request header mix-up
                              4 December 2020

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Apache Tomcat
Publisher:         Apache
Operating System:  UNIX variants (UNIX, Linux, OSX)
                   Windows
Impact/Access:     Denial of Service        -- Unknown/Unspecified
                   Access Confidential Data -- Unknown/Unspecified
Resolution:        Patch/Upgrade
CVE Names:         CVE-2020-17527  

Original Bulletin: 
   https://www.mail-archive.com/announce@apache.org/msg06233.html

- --------------------------BEGIN INCLUDED TEXT--------------------

CVE-2020-17527 Apache Tomcat HTTP/2 Request header mix-up

Severity: Moderate

Vendor: The Apache Software Foundation

Versions Affected:
Apache Tomcat 10.0.0-M1 to 10.0.0-M9
Apache Tomcat 9.0.0.M5 to 9.0.39
Apache Tomcat 8.5.1 to 8.5.59

Description:
While investigating Bug 64830 it was discovered that Apache Tomcat could
 re-use an HTTP request header value from the previous stream received
on an HTTP/2 connection for the request associated with the subsequent
stream. While this would most likely lead to an error and the closure of
the HTTP/2 connection, it is possible that information could leak
between requests.

Mitigation:
- - Upgrade to Apache Tomcat 10.0.0-M10 or later
- - Upgrade to Apache Tomcat 9.0.40 or later
- - Upgrade to Apache Tomcat 8.5.60 or later

Credit:
This issue was identified by the Apache Tomcat Security Team.

References:
[1] http://tomcat.apache.org/security-10.html
[2] http://tomcat.apache.org/security-9.html
[3] http://tomcat.apache.org/security-8.html

- --------------------------END INCLUDED TEXT--------------------

You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.

NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members.  As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.

NOTE: This is only the original release of the security bulletin.  It may
not be updated when updates to the original are made.  If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.

Contact information for the authors of the original document is included
in the Security Bulletin above.  If you have any questions or need further
information, please contact them directly.

Previous advisories and external security bulletins can be retrieved from:

        https://www.auscert.org.au/bulletins/

===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072

Internet Email: auscert@auscert.org.au
Facsimile:      (07) 3365 7031
Telephone:      (07) 3365 4417 (International: +61 7 3365 4417)
                AusCERT personnel answer during Queensland business hours
                which are GMT+10:00 (AEST).
                On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967
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=5LtM
-----END PGP SIGNATURE-----