- Issued:
- 2016-07-18
- Updated:
- 2016-07-18
RHSA-2016:1421 - Important: httpd security update
Synopsis
Important: httpd security update
Type/Severity
Security Advisory Important
Topic
An update for httpd is now available for Red Hat Enterprise Linux 5 and 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.
Description
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.
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
| Product | Version | Arch |
|---|---|---|
| Red Hat Enterprise Linux for Scientific Computing | 6 | x86_64 |
| Red Hat Enterprise Linux for Power, big endian | 6 | ppc64 |
| Red Hat Enterprise Linux for Power, big endian | 5 | ppc |
| Red Hat Enterprise Linux for IBM z Systems | 6 | s390x |
| Red Hat Enterprise Linux for IBM z Systems | 5 | s390x |
| Red Hat Enterprise Linux Workstation | 6 | x86_64 |
| Red Hat Enterprise Linux Workstation | 6 | i386 |
| Red Hat Enterprise Linux Workstation | 5 | x86_64 |
| Red Hat Enterprise Linux Workstation | 5 | i386 |
| Red Hat Enterprise Linux Server | 6 | x86_64 |
| Red Hat Enterprise Linux Server | 6 | i386 |
| Red Hat Enterprise Linux Server | 5 | x86_64 |
| Red Hat Enterprise Linux Server | 5 | ia64 |
| Red Hat Enterprise Linux Server | 5 | i386 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support | 6 | x86_64 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support | 6 | i386 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension | 6 | x86_64 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension | 6 | i386 |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension (for IBM z Systems) | 6 | s390x |
| Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) | 6 | s390x |
| Red Hat Enterprise Linux Desktop | 6 | x86_64 |
| Red Hat Enterprise Linux Desktop | 6 | i386 |
| Red Hat Enterprise Linux Desktop | 5 | x86_64 |
| Red Hat Enterprise Linux Desktop | 5 | i386 |
Updated Packages
- httpd-devel-2.2.15-54.el6_8.i686.rpm
- httpd-debuginfo-2.2.3-92.el5_11.x86_64.rpm
- httpd-2.2.3-92.el5_11.x86_64.rpm
- httpd-2.2.15-54.el6_8.x86_64.rpm
- httpd-devel-2.2.15-54.el6_8.ppc64.rpm
- httpd-devel-2.2.3-92.el5_11.ppc.rpm
- httpd-devel-2.2.3-92.el5_11.s390x.rpm
- httpd-debuginfo-2.2.3-92.el5_11.ppc64.rpm
- httpd-tools-2.2.15-54.el6_8.ppc64.rpm
- httpd-debuginfo-2.2.15-54.el6_8.ppc.rpm
- httpd-manual-2.2.15-54.el6_8.noarch.rpm
- httpd-manual-2.2.3-92.el5_11.i386.rpm
- httpd-debuginfo-2.2.15-54.el6_8.x86_64.rpm
- httpd-2.2.3-92.el5_11.i386.rpm
- httpd-2.2.15-54.el6_8.ppc64.rpm
- httpd-devel-2.2.3-92.el5_11.i386.rpm
- httpd-tools-2.2.15-54.el6_8.s390x.rpm
- httpd-tools-2.2.15-54.el6_8.x86_64.rpm
- httpd-manual-2.2.3-92.el5_11.ia64.rpm
- mod_ssl-2.2.3-92.el5_11.i386.rpm
- mod_ssl-2.2.3-92.el5_11.ppc.rpm
- mod_ssl-2.2.15-54.el6_8.x86_64.rpm
- mod_ssl-2.2.15-54.el6_8.s390x.rpm
- httpd-debuginfo-2.2.15-54.el6_8.s390.rpm
- mod_ssl-2.2.3-92.el5_11.s390x.rpm
- httpd-debuginfo-2.2.15-54.el6_8.ppc64.rpm
- httpd-devel-2.2.3-92.el5_11.x86_64.rpm
- httpd-2.2.3-92.el5_11.ia64.rpm
- httpd-debuginfo-2.2.3-92.el5_11.ppc.rpm
- mod_ssl-2.2.3-92.el5_11.ia64.rpm
- mod_ssl-2.2.3-92.el5_11.x86_64.rpm
- httpd-devel-2.2.3-92.el5_11.ppc64.rpm
- httpd-manual-2.2.3-92.el5_11.x86_64.rpm
- httpd-2.2.15-54.el6_8.src.rpm
- httpd-devel-2.2.15-54.el6_8.x86_64.rpm
- httpd-2.2.3-92.el5_11.s390x.rpm
- httpd-debuginfo-2.2.15-54.el6_8.s390x.rpm
- httpd-debuginfo-2.2.3-92.el5_11.i386.rpm
- httpd-debuginfo-2.2.3-92.el5_11.ia64.rpm
- httpd-debuginfo-2.2.3-92.el5_11.s390.rpm
- httpd-devel-2.2.15-54.el6_8.ppc.rpm
- httpd-devel-2.2.15-54.el6_8.s390.rpm
- httpd-devel-2.2.3-92.el5_11.s390.rpm
- httpd-manual-2.2.3-92.el5_11.ppc.rpm
- httpd-manual-2.2.3-92.el5_11.s390x.rpm
- mod_ssl-2.2.15-54.el6_8.i686.rpm
- mod_ssl-2.2.15-54.el6_8.ppc64.rpm
- httpd-debuginfo-2.2.3-92.el5_11.s390x.rpm
- httpd-2.2.3-92.el5_11.src.rpm
- httpd-2.2.3-92.el5_11.ppc.rpm
- httpd-2.2.15-54.el6_8.s390x.rpm
- httpd-debuginfo-2.2.15-54.el6_8.i686.rpm
- httpd-devel-2.2.3-92.el5_11.ia64.rpm
- httpd-tools-2.2.15-54.el6_8.i686.rpm
- httpd-devel-2.2.15-54.el6_8.s390x.rpm
- httpd-2.2.15-54.el6_8.i686.rpm
Fixes
CVEs
References
- https://access.redhat.com/security/updates/classification/#important
- This content is not included.This content is not included.https://access.redhat.com/security/vulnerabilities/httpoxy
- https://access.redhat.com/solutions/2435501
Additional information
- The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
- Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.