CVE-2021-39939

Description

An uncontrolled resource consumption vulnerability in GitLab Runner affecting all versions starting from 13.7 before 14.3.6, all versions starting from 14.4 before 14.4.4, all versions starting from 14.5 before 14.5.2, allows an attacker triggering a job with a specially crafted docker image to exhaust resources on runner manager

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.18%
Third-Party Advisory gitlab.com
Affected: GitLab GitLab Runner
Published at:
Updated at:

References

Link Tags
https://gitlab.com/gitlab-org/gitlab-runner/-/issues/28630 broken link
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39939.json third party advisory

Frequently Asked Questions

What is the severity of CVE-2021-39939?
CVE-2021-39939 has been scored as a medium severity vulnerability.
How to fix CVE-2021-39939?
To fix CVE-2021-39939, 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-2021-39939 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-39939 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-39939?
CVE-2021-39939 affects GitLab GitLab Runner.
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