ESB-2019.0451 - [SUSE] nginx: Multiple vulnerabilities 2019-02-13

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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2019.0451
              SUSE Security Update: Security update for nginx
                             13 February 2019

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           nginx
Publisher:         SUSE
Operating System:  SUSE
Impact/Access:     Denial of Service        -- Remote/Unauthenticated
                   Access Confidential Data -- Remote/Unauthenticated
Resolution:        Mitigation
CVE Names:         CVE-2018-16845 CVE-2018-16844 CVE-2018-16843

Reference:         ESB-2018.3686
                   ESB-2018.3672
                   ESB-2018.3524
                   ESB-2018.3490

Original Bulletin: 
   https://www.suse.com/support/update/announcement/2019/suse-su-20190334-1/

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   SUSE Security Update: Security update for nginx
______________________________________________________________________________

Announcement ID:    SUSE-SU-2019:0334-1
Rating:             important
References:         #1115015 #1115022 #1115025 
Cross-References:   CVE-2018-16843 CVE-2018-16844 CVE-2018-16845
                   
Affected Products:
                    SUSE Linux Enterprise Module for Server Applications 15
                    SUSE Linux Enterprise Module for Open Buildservice Development Tools 15
______________________________________________________________________________

   An update that fixes three vulnerabilities is now available.

Description:

   This update for nginx to version 1.14.2 fixes the following issues:

   Security vulnerabilities addressed:

   - CVE-2018-16843 CVE-2018-16844: Fixed an issue whereby a client using
     HTTP/2 might cause excessive memory consumption and CPU usage
     (bsc#1115025 bsc#1115022).
   - CVE-2018-16845: Fixed an issue which might result in worker process
     memory disclosure whne processing of a specially crafted mp4 file with
     the ngx_http_mp4_module (bsc#1115015).

   Other bug fixes and changes made:

   - Fixed an issue with handling of client addresses when using unix domain
     listen sockets to work with datagrams on Linux.
   - The logging level of the "http request", "https proxy request",
     "unsupported protocol", "version too low", "no suitable key share", and
     "no suitable signature algorithm" SSL errors has been lowered from
     "crit" to "info".
   - Fixed an issue with using OpenSSL 1.1.0 or newer it was not possible to
     switch off "ssl_prefer_server_ciphers" in a virtual server if it was
     switched on in the default server.
   - Fixed an issue with TLS 1.3 always being enabled when built with OpenSSL
     1.1.0 and used with 1.1.1
   - Fixed an issue with sending a disk-buffered request body to a gRPC
     backend
   - Fixed an issue with connections of some gRPC backends might not be
     cached when using the "keepalive" directive.
   - Fixed a segmentation fault, which might occur in a worker process if the
     ngx_http_mp4_module was used on 32-bit platforms.
   - Fixed an issue, whereby working with gRPC backends might result in
     excessive memory consumption.


Patch Instructions:

   To install this SUSE Security Update use the SUSE recommended installation methods
   like YaST online_update or "zypper patch".

   Alternatively you can run the command listed for your product:

   - SUSE Linux Enterprise Module for Server Applications 15:

      zypper in -t patch SUSE-SLE-Module-Server-Applications-15-2019-334=1

   - SUSE Linux Enterprise Module for Open Buildservice Development Tools 15:

      zypper in -t patch SUSE-SLE-Module-Development-Tools-OBS-15-2019-334=1



Package List:

   - SUSE Linux Enterprise Module for Server Applications 15 (aarch64 ppc64le s390x x86_64):

      nginx-1.14.2-3.3.1
      nginx-debuginfo-1.14.2-3.3.1
      nginx-debugsource-1.14.2-3.3.1

   - SUSE Linux Enterprise Module for Open Buildservice Development Tools 15 (noarch):

      vim-plugin-nginx-1.14.2-3.3.1


References:

   https://www.suse.com/security/cve/CVE-2018-16843.html
   https://www.suse.com/security/cve/CVE-2018-16844.html
   https://www.suse.com/security/cve/CVE-2018-16845.html
   https://bugzilla.suse.com/1115015
   https://bugzilla.suse.com/1115022
   https://bugzilla.suse.com/1115025

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