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             AUSCERT External Security Bulletin Redistribution

      GitLab Critical Security Release: 11.5.0-rc12, 11.4.6, 11.3.10
                             21 November 2018


        AusCERT Security Bulletin Summary

Product:           GitLab
Publisher:         GitLab
Operating System:  UNIX variants (UNIX, Linux, OSX)
Impact/Access:     Create Arbitrary Files -- Existing Account            
                   Cross-site Scripting   -- Remote with User Interaction
Resolution:        Patch/Upgrade
CVE Names:         CVE-2018-19359 CVE-2018-18643 

Original Bulletin: 

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GitLab Critical Security Release: 11.5.0-rc12, 11.4.6, 11.3.10

Today we are releasing versions 11.5.0-rc12, 11.4.6, and 11.3.10 for GitLab
Community Edition (CE) and Enterprise Edition (EE).

These versions contain a number of important security fixes, and we strongly
recommend that all GitLab installations be upgraded to one of these versions

The vulnerability details will be made public on our issue tracker in
approximately 30 days.

Please read on for more information regarding this release.

Persistent XSS Autocompletion

An attribute used in autocompletion contained an input validation and output
encoding issue which resulted in a persistent XSS. The issue is now mitigated
in the latest release and is assigned CVE-2018-18643.

Versions Affected

Affects GitLab CE 11.2 and later.


We strongly recommend that all installations running an affected version above
to be upgraded to the latest version as soon as possible.

Unauthorized service template creation

The project import feature contained an input validation issue that resulted in
the ability for an unauthorized user to create service templates. The issue is
now mitigated in the latest release and is assigned CVE-2018-19359.

Thanks to @jobert for responsibly reporting this vulnerability to us.

Versions Affected

Affects GitLab CE 8.9 and later.


We strongly recommend that all installations running an affected version above
to be upgraded to the latest version as soon as possible.


To update, check out our update page.

Updated: 2018-11-20: We have received some questions regarding the XSS
vulnerability in this release and a similar vulnerability reported in October.
The fix in this release does correct an incomplete patch in the October
security release.

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