ESB-2018.2060 - [Linux][Debian] znc: Multiple vulnerabilities 2018-07-16

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             AUSCERT External Security Bulletin Redistribution

                            znc security update
                               16 July 2018


        AusCERT Security Bulletin Summary

Product:           znc
Publisher:         Debian
Operating System:  Debian GNU/Linux 8
                   Linux variants
Impact/Access:     Unauthorised Access      -- Remote/Unauthenticated      
                   Access Confidential Data -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-14056 CVE-2018-14055 

Original Bulletin:

Comment: This advisory references vulnerabilities in products which run on 
         platforms other than Debian. It is recommended that administrators 
         running znc check for an updated version of the software for their 
         operating system.

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Package        : znc
Version        : 1.4-2+deb8u1
CVE IDs        : CVE-2018-14055 CVE-2018-14056 
Debian Bugs    : #903787 #903788

It was discovered that there were two issues in znc, a modular IRC

  * There was insufficient validation of lines coming from the network
    allowing a non-admin user to escalate his privilege and inject rogue
    values into znc.conf. (CVE-2018-14055)

  * A path traversal vulnerability (via "../" being embedded in a web skin
    name) to access files outside of the allowed directory.

For Debian 8 "Jessie", these issues have been fixed in znc version

We recommend that you upgrade your znc packages.


- - -- 
     : :'  :     Chris Lamb
     `. `'` /

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