CVE-2023-3246 Allocation of Resources Without Limits or Throttling in GitLab

Medium 4.3 Published Updated

Attackers can block the Sidekiq job processor in GitLab, causing a denial of service for background tasks.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2023-3246?

CVE-2023-3246 is a medium-severity denial of service vulnerability in Gitlab Gitlab, published on 6 Nov 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

An issue has been discovered in GitLab EE/CE affecting all versions starting before 16.3.6, all versions starting from 16.4 before 16.4.2, all versions starting from 16.5 before 16.5.1 which allows an attackers to block Sidekiq job processor.

Weakness: CWE-770

Which versions are affected by CVE-2023-3246?

1 open source package ship an affected version, including gitlab. It affects 1 product.

PackageAffectedFixed in
gitlab BitnamiFrom 10.3.016.3.6, 16.4.2, 16.5.1

Products include Gitlab Gitlab.

How do I fix CVE-2023-3246?

Upgrade gitlab to a fixed version for your release line: 16.3.6, 16.4.2 or 16.5.1.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2023-3246 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-3246 exists.

All Gitlab Gitlab vulnerabilities

Sources

Also known as BIT-gitlab-2023-3246, GHSA-xh7q-hg94-4g3m, UBUNTU-CVE-2023-3246.

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