CVE-2021-39947 - CVE House
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Status published Medium CVE-2021-39947

In specific circumstances, trace file buffers in GitLab Runner versions...

Vulnerability Description

In specific circumstances, trace file buffers in GitLab Runner versions up to 14.3.4, 14.4 to 14.4.2, and 14.5 to 14.5.2 would re-use the file descriptor 0 for multiple traces and mix the output of several jobs

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • This vulnerability has been discovered internally by the GitLab team

References

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Affected Vendor

Affected Software

GitLab Runner
Vulnerable Versions:
<14.3.4, >=14.4, <14.4.2, >=14.5, <14.5.2

Timeline

Official Publish: June 6th, 2022
Last Modified: August 4th, 2024
Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.