RHEL 6 : JBoss Core Services (RHSA-2017:0193)

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

Synopsis :

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

Description :

Updated packages that provide Red Hat JBoss Core Services Pack Apache
Server 2.4.23 and fix several bugs, and add various enhancements are
now available for Red Hat Enterprise Linux 6.

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.

This release adds the new Apache HTTP Server 2.4.23 packages that are
part of the JBoss Core Services offering.

This release serves as a replacement for Red Hat JBoss Core Services
Pack Apache Server 2.4.6, and includes bug fixes and enhancements.
Refer to the Release Notes for information on the most significant bug
fixes and enhancements included in this release.

Security Fix(es) :

* A flaw was found in the way OpenSSL encoded certain ASN.1 data
structures. An attacker could use this flaw to create a specially
crafted certificate which, when verified or re-encoded by OpenSSL,
could cause it to crash, or execute arbitrary code using the
permissions of the user running an application compiled against the
OpenSSL library. (CVE-2016-2108)

* It was found that the length checks prior to writing to the target
buffer for creating a virtual host mapping rule did not take account
of the length of the virtual host name, creating the potential for a
buffer overflow. (CVE-2016-6808)

* It was discovered that OpenSSL did not always use constant time
operations when computing Digital Signature Algorithm (DSA)
signatures. A local attacker could possibly use this flaw to obtain a
private DSA key belonging to another user or service running on the
same system. (CVE-2016-2178)

* Multiple integer overflow flaws were found in the way OpenSSL
performed pointer arithmetic. A remote attacker could possibly use
these flaws to cause a TLS/SSL server or client using OpenSSL to
crash. (CVE-2016-2177)

* It was discovered that specifying configuration with a JVMRoute path
longer than 80 characters will cause segmentation fault leading to a
server crash. (CVE-2016-4459)

* An error was found in protocol parsing logic of mod_cluster load
balancer Apache HTTP Server modules. An attacker could use this flaw
to cause a Segmentation Fault in the serving httpd process.

Red Hat would like to thank the OpenSSL project for reporting
CVE-2016-2108. The CVE-2016-4459 issue was discovered by Robert Bost
(Red Hat). Upstream acknowledges Huzaifa Sidhpurwala (Red Hat), Hanno
Bock, and David Benjamin (Google) as the original reporters of

See also :


Solution :

Update the affected packages.

Risk factor :

Critical / CVSS Base Score : 10.0
CVSS Temporal Score : 7.4
Public Exploit Available : false

Family: Red Hat Local Security Checks

Nessus Plugin ID: 96824 ()

Bugtraq ID:

CVE ID: CVE-2016-2108

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