ESB-2018.2285 - [SUSE] znc: Multiple vulnerabilities 2018-08-08

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

                               ESB-2018.2285
             openSUSE Security Update: Security update for znc
                               8 August 2018

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

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

Product:          znc
Publisher:        SUSE
Operating System: SUSE
Impact/Access:    Increased Privileges     -- Existing Account      
                  Access Confidential Data -- Remote/Unauthenticated
Resolution:       Patch/Upgrade
CVE Names:        CVE-2018-14056 CVE-2018-14055 

Reference:        ESB-2018.2093
                  ESB-2018.2060

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   openSUSE Security Update: Security update for znc
______________________________________________________________________________

Announcement ID:    openSUSE-SU-2018:2228-1
Rating:             moderate
References:         #1101280 #1101281 
Cross-References:   CVE-2018-14055 CVE-2018-14056
Affected Products:
                    SUSE Package Hub for SUSE Linux Enterprise 12
______________________________________________________________________________

   An update that fixes two vulnerabilities is now available.

Description:

   This update for znc fixes the following issues:

   - Update to version 1.7.1
     * CVE-2018-14055: non-admin user could gain admin privileges and shell
       access by injecting values into znc.conf (bnc#1101281)
     * CVE-2018-14056: path traversal in HTTP handler via ../ in a web skin
       name. (bnc#1101280)
   - Update to version 1.7.0
     * Make ZNC UI translateable to different languages
     * Configs written before ZNC 0.206 can't be read anymore
     * Implement IRCv3.2 capabilities away-notify, account-notify,
       extended-join
     * Implement IRCv3.2 capabilities echo-message, cap-notify on the "client
       side"
     * Update capability names as they are named in IRCv3.2:
       znc.in/server-time-iso→server-time, znc.in/batch→batch. Old names
       will continue working for a while, then will be removed in some future
       version.
     * Make ZNC request server-time from server when available
     * Add "AuthOnlyViaModule" global/user setting
     * Stop defaulting real name to "Got ZNC?"
     * Add SNI SSL client support
     * Add support for CIDR notation in allowed hosts list and in trusted
       proxy list
     * Add network-specific config for cert validation in addition to
       user-supplied fingerprints: TrustAllCerts, defaults to false, and
       TrustPKI, defaults to true.
     * Add /attach command for symmetry with /detach. Unlike /join it allows
       wildcards.
   - Update to version 1.6.6:
     * Fix use-after-free in znc --makepem. It was broken for a long time,
       but started segfaulting only now. This is a useability fix, not a
       security fix, because self-signed (or signed by a CA) certificates can
       be created without using --makepem, and then combined into znc.pem.


Patch Instructions:

   To install this openSUSE 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 Package Hub for SUSE Linux Enterprise 12:

      zypper in -t patch openSUSE-2018-819=1



Package List:

   - SUSE Package Hub for SUSE Linux Enterprise 12 (aarch64 ppc64le s390x x86_64):

      znc-1.7.1-2.1
      znc-devel-1.7.1-2.1
      znc-perl-1.7.1-2.1
      znc-python3-1.7.1-2.1
      znc-tcl-1.7.1-2.1

   - SUSE Package Hub for SUSE Linux Enterprise 12 (noarch):

      znc-lang-1.7.1-2.1


References:

   https://www.suse.com/security/cve/CVE-2018-14055.html
   https://www.suse.com/security/cve/CVE-2018-14056.html
   https://bugzilla.suse.com/1101280
   https://bugzilla.suse.com/1101281

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