SUSE-SU-2016:2090-1: moderate: Security update for apache2

[sle-updates at lists.suse.com]

   SUSE Security Update: Security update for apache2
______________________________________________________________________________

Announcement ID:    SUSE-SU-2016:2090-1
Rating:             moderate
References:         #951692 #970391 #973381 #988488 
Cross-References:   CVE-2016-5387
Affected Products:
                    SUSE Linux Enterprise Server for SAP 12
                    SUSE Linux Enterprise Server 12-LTSS
______________________________________________________________________________

   An update that solves one vulnerability and has three fixes
   is now available.

Description:


   This update for apache2 fixes the following issues:

   - It used to be possible to set an arbitrary $HTTP_PROXY environment
     variable for request handlers -- like CGI scripts -- by including a
     specially crafted HTTP header in the request (CVE-2016-5387). As a
     result, these server components would potentially direct all their
     outgoing HTTP traffic through a malicious proxy server. This patch fixes
     the issue: the updated Apache server ignores such HTTP headers and never
     sets $HTTP_PROXY for sub-processes (unless a value has been explicitly
     configured by the administrator in the configuration file). (bsc#988488)

   - Ignore SIGINT signal in child processes. This fixes a race condition in
     signals handling when httpd is running on foreground and the user hits
     ctrl+c. (bsc#970391)

   - Don't put the backend in error state (by default) when 500/503 is
     overridden. (bsc#951692)

   - Remove obsolete /usr/share/apache2/rc.apache2 sample script. (bsc#973381)


Patch Instructions:

   To install this SUSE Security Update use YaST online_update.
   Alternatively you can run the command listed for your product:

   - SUSE Linux Enterprise Server for SAP 12:

      zypper in -t patch SUSE-SLE-SAP-12-2016-1235=1

   - SUSE Linux Enterprise Server 12-LTSS:

      zypper in -t patch SUSE-SLE-SERVER-12-2016-1235=1

   To bring your system up-to-date, use "zypper patch".


Package List:

   - SUSE Linux Enterprise Server for SAP 12 (noarch):

      apache2-doc-2.4.10-14.17.1

   - SUSE Linux Enterprise Server for SAP 12 (x86_64):

      apache2-2.4.10-14.17.1
      apache2-debuginfo-2.4.10-14.17.1
      apache2-debugsource-2.4.10-14.17.1
      apache2-example-pages-2.4.10-14.17.1
      apache2-prefork-2.4.10-14.17.1
      apache2-prefork-debuginfo-2.4.10-14.17.1
      apache2-utils-2.4.10-14.17.1
      apache2-utils-debuginfo-2.4.10-14.17.1
      apache2-worker-2.4.10-14.17.1
      apache2-worker-debuginfo-2.4.10-14.17.1

   - SUSE Linux Enterprise Server 12-LTSS (ppc64le s390x x86_64):

      apache2-2.4.10-14.17.1
      apache2-debuginfo-2.4.10-14.17.1
      apache2-debugsource-2.4.10-14.17.1
      apache2-example-pages-2.4.10-14.17.1
      apache2-prefork-2.4.10-14.17.1
      apache2-prefork-debuginfo-2.4.10-14.17.1
      apache2-utils-2.4.10-14.17.1
      apache2-utils-debuginfo-2.4.10-14.17.1
      apache2-worker-2.4.10-14.17.1
      apache2-worker-debuginfo-2.4.10-14.17.1

   - SUSE Linux Enterprise Server 12-LTSS (noarch):

      apache2-doc-2.4.10-14.17.1


References:

   https://www.suse.com/security/cve/CVE-2016-5387.html
   https://bugzilla.suse.com/951692
   https://bugzilla.suse.com/970391
   https://bugzilla.suse.com/973381
   https://bugzilla.suse.com/988488