httpd, mod_ssl security update

2016-07-18T15:57:06
ID CESA-2016:1421
Type centos
Reporter CentOS Project
Modified 2016-07-18T16:26:49

Description

CentOS Errata and Security Advisory CESA-2016:1421

The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server.

Security Fix(es):

  • It was discovered that httpd 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, httpd 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.

Merged security bulletin from advisories: http://lists.centos.org/pipermail/centos-announce/2016-July/021978.html http://lists.centos.org/pipermail/centos-announce/2016-July/021980.html

Affected packages: httpd httpd-devel httpd-manual httpd-tools mod_ssl

Upstream details at: https://rhn.redhat.com/errata/RHSA-2016-1421.html