CVE-2023-0921

Allocation of Resources Without Limits or Throttling in GitLab

Description

A lack of length validation in GitLab CE/EE affecting all versions from 8.3 before 15.10.8, 15.11 before 15.11.7, and 16.0 before 16.0.2 allows an authenticated attacker to create a large Issue description via GraphQL which, when repeatedly requested, saturates CPU usage.

Category

4.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 10.50% Top 10%
Vendor Advisory gitlab.com Vendor Advisory gitlab.com
Affected: GitLab GitLab
Published at:
Updated at:

References

Link Tags
https://gitlab.com/gitlab-org/gitlab/-/issues/392433 vendor advisory issue tracking
https://hackerone.com/reports/1869839 third party advisory permissions required
https://gitlab.com/gitlab-org/cves/-/blob/master/2023/CVE-2023-0921.json vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-0921?
CVE-2023-0921 has been scored as a medium severity vulnerability.
How to fix CVE-2023-0921?
To fix CVE-2023-0921, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-0921 being actively exploited in the wild?
It is possible that CVE-2023-0921 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~11% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-0921?
CVE-2023-0921 affects GitLab GitLab.
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