RHSA-2016:1851 - Security Advisory

Topic

Updated packages are available for Red Hat Enterprise Linux 6 and 7 that provide Red Hat JBoss Core Services Service Pack 1 fixing one security issue.

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.

Description

This release of Red Hat JBoss Core Services Service Pack 1 serves as a replacement for JBoss Core Services Apache HTTP Server.

Security Fix(es):

• It was discovered that Apache HTTP Server used the value of the Proxy header from HTTP requests to initialize the HTTP_PROXY environment variable for CGI scripts, which in turn was incorrectly used by certain HTTP client implementations to configure the proxy for outgoing HTTP requests. A remote attacker could possibly use this flaw to redirect HTTP requests performed by a CGI script to an attacker-controlled proxy via a malicious HTTP request. (CVE-2016-5387)

Note: After this update, Apache HTTP Server will no longer pass the value of the Proxy request header to scripts via the HTTP_PROXY environment variable.

Red Hat would like to thank Scott Geary (VendHQ) for reporting this issue.

Solution

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

https://access.redhat.com/articles/11258

After installing the updated packages, the httpd daemon will be restarted
automatically.

Affected Products

• Red Hat JBoss Core Services 1 for RHEL 7 x86_64
• Red Hat JBoss Core Services 1 for RHEL 7 ppc64
• Red Hat JBoss Core Services 1 for RHEL 6 x86_64
• Red Hat JBoss Core Services 1 for RHEL 6 ppc64
• Red Hat JBoss Core Services 1 for RHEL 6 i386

Fixes

• BZ - 1353755 - CVE-2016-5387 Apache HTTPD: sets environmental variable based on user supplied Proxy request header

CVEs

• CVE-2016-5387

References

• http://www.redhat.com/security/updates/classification/#normal