ESB-2018.3091 - [Win][Linux][Debian][Mac] jekyll: Access confidential data - Existing account 2018-10-11

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

                               ESB-2018.3091
                         jekyll - security update
                              11 October 2018

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

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

Product:           jekyll
Publisher:         Debian
Operating System:  Debian GNU/Linux 8
                   Linux variants
                   Windows
                   Mac OS
Impact/Access:     Access Confidential Data -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-17567  

Original Bulletin: 
   https://security-tracker.debian.org/tracker/DLA-1541-1

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

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Package        : jekyll
Version        : 2.2.0+dfsg-2+deb8u1
CVE ID         : CVE-2018-17567
Debian Bug     : 909933


Parker Moore from Github Inc, discovered a vulnerability in include:
setting in the config file of jekyll which allow arbitrary file reads.
By simply including a symlink in the include array allowed the
symlinked file to be read into the build when they shouldn't actually
be read in any circumstance.

For Debian 8 "Jessie", this problem has been fixed in version
2.2.0+dfsg-2+deb8u1.

We recommend that you upgrade your jekyll packages.

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
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