ESB-2018.2125.2 - UPDATE [Win][UNIX/Linux] Apache Tomcat: Multiple vulnerabilities 2018-08-10

Printable version
PGP/GPG verifiable version

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

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

                              ESB-2018.2125.2
                     Apache Tomcat 9.x vulnerabilities
                              10 August 2018

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

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

Product:           Apache Tomcat
Publisher:         Apache
Operating System:  Windows
                   UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Denial of Service        -- Remote/Unauthenticated
                   Access Confidential Data -- Remote/Unauthenticated
                   Reduced Security         -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-8037 CVE-2018-8034 CVE-2018-1336

Original Bulletin: 
   http://tomcat.apache.org/security-9.html

Comment: This bulletin contains three (3) Apache security advisories.

Revision History:  August 10 2018: Updated description for CVE-2018-8037
                   July   23 2018: Initial Release

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

CVE-2018-1336 Apache Tomcat - Denial of Service

Severity: Important

Vendor: The Apache Software Foundation

Versions Affected:
Apache Tomcat 9.0.0.M9 to 9.0.7
Apache Tomcat 8.5.0 to 8.5.30
Apache Tomcat 8.0.0.RC1 to 8.0.51
Apache Tomcat 7.0.28 to 7.0.86

Description:

An improper handing of overflow in the UTF-8 decoder with
supplementary characters can lead to an infinite loop in the
decoder causing a Denial of Service.

Mitigation:
Users of the affected versions should apply one of the following
mitigations:
- - Upgrade to Apache Tomcat 9.0.7 or later.
- - Upgrade to Apache Tomcat 8.5.32 or later.
- - Upgrade to Apache Tomcat 8.0.52 or later.
- - Upgrade to Apache Tomcat 7.0.90 or later.

History:
2018-07-22 Original advisory

References:
[1] http://tomcat.apache.org/security-9.html

- --------------------------------------------------------------------------------

CVE-2018-8034 Apache Tomcat - Security Constraint Bypass

Severity: Low

Vendor: The Apache Software Foundation

Versions Affected:
Apache Tomcat 9.0.0.M1 to 9.0.9
Apache Tomcat 8.5.0 to 8.5.31
Apache Tomcat 8.0.0.RC1 to 8.0.52
Apache Tomcat 7.0.35 to 7.0.88

Description:
The host name verification when using TLS with the WebSocket
client was missing. It is now enabled by default.

Mitigation:
Users of the affected versions should apply one of the following
mitigations:
- - Upgrade to Apache Tomcat 9.0.10 or later.
- - Upgrade to Apache Tomcat 8.5.32 or later.
- - Upgrade to Apache Tomcat 8.0.53 or later.
- - Upgrade to Apache Tomcat 7.0.90 or later.

History:
2018-07-22 Original advisory

References:
[1] http://tomcat.apache.org/security-9.html

- --------------------------------------------------------------------------------

CVE-2018-8037 Apache Tomcat - Information Disclosure

Severity: Important

Vendor: The Apache Software Foundation

Versions Affected:
Apache Tomcat 9.0.0.M9 to 9.0.9
Apache Tomcat 8.5.5 to 8.5.31

Description:

If an async request was completed by the application at the same time as 
the container triggered the async timeout, a race condition existed that 
could result in a user seeing a response intended for a different user. 
An additional issue was present in the NIO and NIO2 connectors that did 
not correctly track the closure of the connection when an async request 
was completed by the application and timed out by the container at the 
same time. This could also result in a user seeing a response intended 
for another user.

Mitigation:
Users of the affected versions should apply one of the following
mitigations:
- - Upgrade to Apache Tomcat 9.0.10 or later.
- - Upgrade to Apache Tomcat 8.5.32 or later.

History:
2018-07-22 Original advisory
2018-08-09 Update description

References:
[1] http://tomcat.apache.org/security-9.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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=XlJo
-----END PGP SIGNATURE-----

« Back to bulletins