RHEL 6 / 7 : JBoss Web Server (RHSA-2017:2493)

This script is Copyright (C) 2017 Tenable Network Security, Inc.


Synopsis :

The remote Red Hat host is missing one or more security updates.

Description :

An update is now available for Red Hat JBoss Enterprise Web Server
2.1.2 for Red Hat Enterprise Linux 6 and Red Hat JBoss Enterprise Web
Server 2.1.2 for Red Hat Enterprise Linux 7.

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.

OpenSSL is a toolkit that implements the Secure Sockets Layer (SSL)
and Transport Layer Security (TLS) protocols, as well as a
full-strength general-purpose cryptography library.

Apache Tomcat is a servlet container for the Java Servlet and
JavaServer Pages (JSP) technologies.

This release provides an update to OpenSSL and Tomcat 6/7 for Red Hat
JBoss Web Server 2.1.2. The updates are documented in the Release
Notes document linked to in the References.

Users of Red Hat JBoss Web Server 2.1.2 should upgrade to these
updated packages, which resolve several security issues.

Security Fix(es) :

* A memory leak flaw was found in the way OpenSSL handled TLS status
request extension data during session renegotiation. A remote attacker
could cause a TLS server using OpenSSL to consume an excessive amount
of memory and, possibly, exit unexpectedly after exhausting all
available memory, if it enabled OCSP stapling support. (CVE-2016-6304)

* 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 denial of service flaw was found in the way the TLS/SSL protocol
defined processing of ALERT packets during a connection handshake. A
remote attacker could use this flaw to make a TLS/SSL server consume
an excessive amount of CPU and fail to accept connections from other
clients. (CVE-2016-8610)

Red Hat would like to thank the OpenSSL project for reporting
CVE-2016-6304 and Shi Lei (Gear Team of Qihoo 360 Inc.) for reporting
CVE-2016-8610. Upstream acknowledges Shi Lei (Gear Team of Qihoo 360
Inc.) as the original reporter of CVE-2016-6304.

See also :

https://access.redhat.com/articles/3155411
http://rhn.redhat.com/errata/RHSA-2017-2493.html
https://www.redhat.com/security/data/cve/CVE-2016-6304.html
https://www.redhat.com/security/data/cve/CVE-2016-8610.html
https://www.redhat.com/security/data/cve/CVE-2017-5647.html
https://www.redhat.com/security/data/cve/CVE-2017-5664.html

Solution :

Update the affected packages.

Risk factor :

High / CVSS Base Score : 7.8
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C)
CVSS Temporal Score : 5.8
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Family: Red Hat Local Security Checks

Nessus Plugin ID: 102692 ()

Bugtraq ID:

CVE ID: CVE-2016-6304
CVE-2016-8610
CVE-2017-5647
CVE-2017-5664

Ready to Amp Up Your Nessus Experience?

Get Nessus Professional to scan unlimited IPs, run compliance checks & more

Buy Nessus Professional Now