Sicherheit: Mehrere Probleme in tomcat und log4j - Pro-Linux

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                   Red Hat Security Advisory

Synopsis:          Important: Red Hat JBoss Web Server Service Pack 1 security
 update
Advisory ID:       RHSA-2017:1802-01
Product:           Red Hat JBoss Web Server
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2017-1802.html
Issue date:        2017-07-25
CVE Names:         CVE-2017-5645 CVE-2017-5647 CVE-2017-5648 
                   CVE-2017-5664 
=====================================================================

1. Summary:

An update is now available for Red Hat JBoss Web Server 3.1.

Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.

2. Description:

Red Hat JBoss Web Server is a fully integrated and certified set of
components for hosting Java web applications. It is comprised of the Apache
HTTP Server, the Apache Tomcat Servlet container, Apache Tomcat Connector
(mod_jk), JBoss HTTP Connector (mod_cluster), Hibernate, and the Tomcat
Native library.

This release of Red Hat JBoss Web Server 3.1 Service Pack 1 serves as a
replacement for Red Hat JBoss Web Server 3.1, and includes bug fixes, which
are documented in the Release Notes document linked to in the References.

Security Fix(es):

* It was found that when using remote logging with log4j socket server the
log4j server would deserialize any log event received via TCP or UDP. An
attacker could use this flaw to send a specially crafted log event that,
during deserialization, would execute arbitrary code in the context of the
logger application. (CVE-2017-5645)

* A vulnerability was discovered in tomcat's handling of pipelined requests
when "Sendfile" was used. If sendfile processing completed quickly, it
 was
possible for the Processor to be added to the processor cache twice. This
could lead to invalid responses or information disclosure. (CVE-2017-5647)

* A vulnerability was discovered in the error page mechanism in Tomcat's
DefaultServlet implementation. A crafted HTTP request could cause undesired
side effects, possibly including the removal or replacement of the custom
error page. (CVE-2017-5664)

* A vulnerability was discovered in tomcat. When running an untrusted
application under a SecurityManager it was possible, under some
circumstances, for that application to retain references to the request or
response objects and thereby access and/or modify information associated
with another web application. (CVE-2017-5648)

3. Solution:

Before applying the update, back up your existing Red Hat JBoss Web Server
installation (including all applications and configuration files).

The References section of this erratum contains a download link (you must
log in to download the update).

4. Bugs fixed (https://bugzilla.redhat.com/):

1441205 - CVE-2017-5647 tomcat: Incorrect handling of pipelined requests when
 send file was used
1441223 - CVE-2017-5648 tomcat: Calls to application listeners did not use the
 appropriate facade object
1443635 - CVE-2017-5645 log4j: Socket receiver deserialization vulnerability
1459158 - CVE-2017-5664 tomcat: Security constrained bypass in error page
 mechanism

5. References:

https://access.redhat.com/security/cve/CVE-2017-5645
https://access.redhat.com/security/cve/CVE-2017-5647
https://access.redhat.com/security/cve/CVE-2017-5648
https://access.redhat.com/security/cve/CVE-2017-5664
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/jbossnetwork/restricted/listSoftware.html?product=webserver&downloadType=securityPatches&version=3.1
https://access.redhat.com/documentation/en-US/Red_Hat_JBoss_Web_Server/3/html-single/3.1_Release_Notes/index.html
https://access.redhat.com/security/vulnerabilities/httpoxy
https://access.redhat.com/solutions/2435491

6. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2017 Red Hat, Inc.
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