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                             CERT-Renater

                 Note d'Information No. 2021/VULN350
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DATE                : 08/07/2021

HARDWARE PLATFORM(S): /

OPERATING SYSTEM(S): Systems running GitLab versions prior to 14.0.4,
                                      13.12.8, 13.11.7.

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https://about.gitlab.com/releases/2021/07/07/critical-security-release-gitlab-14-0-4-released/
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Jul 7, 2021 - Costel Maxim
GitLab Critical Security Release: 14.0.4, 13.12.8, and 13.11.7


Learn more about GitLab Critical Security Release: 14.0.4, 13.12.8, and
13.11.7 for GitLab Community Edition (CE) and Enterprise Edition (EE).

Today we are releasing versions 14.0.4, 13.12.8, and 13.11.7 for GitLab
Community Edition (CE) and Enterprise Edition (EE).

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

GitLab releases patches for vulnerabilities in dedicated security
releases. There are two types of security releases: a monthly, scheduled
security release, released a week after the feature release (which
deploys on the 22nd of each month), and ad-hoc security releases for
critical vulnerabilities. For more information, you can visit our
security FAQ. You can see all of our regular and security release blog
posts here. In addition, the issues detailing each vulnerability are
made public on our issue tracker 30 days after the release in which they
were patched.

We are dedicated to ensuring all aspects of GitLab that are exposed to
customers or that host customer data are held to the highest security
standards. As part of maintaining good security hygiene, it is highly
recommended that all customers upgrade to the latest security release
for their supported version. You can read more best practices in
securing your GitLab instance in our blog post.


Table of Fixes

Title                                    Severity
Arbitrary file read via design feature 	critical


Arbitrary file read via design feature

An issue has been discovered in GitLab CE/EE affecting all versions
starting with 13.11, 13.12 and 14.0. A specially crafted design allowed
attackers to read arbitrary files on the server. This is a critical
severity issue. We will update this blog post with the CVSS vector
string once we have finished the full assessment of the impact. We have
requested a CVE ID and will update this blog post when it is assigned.

Thanks vakzz for reporting this vulnerability through our HackerOne bug
bounty program.


Remediation

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


Updating

To update GitLab, see the Update page. To update Gitlab Runner, see the
Updating the Runner page.


Receive Security Release Notifications

To receive security release blog notifications delivered to your inbox,
visit our contact us page. To receive release notifications via RSS,
subscribe to our security release RSS feed or our RSS feed for all
releases.


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+ CERT-RENATER       |    tel : 01-53-94-20-44          +
+ 23/25 Rue Daviel   |    fax : 01-53-94-20-41          +
+ 75013 Paris        |    email:cert@support.renater.fr +
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