UBUNTU-CVE-2021-39947

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Source

https://ubuntu.com/security/CVE-2021-39947

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-39947.json

JSON Data

https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-39947

Upstream

CVE-2021-39947

Published

2022-06-06T17:15:00Z

Modified

2025-10-24T04:50:33Z

Severity

5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

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

References

Affected packages

Ubuntu:18.04:LTS / gitlab-ci-multi-runner

Package

Name: gitlab-ci-multi-runner
Purl: pkg:deb/ubuntu/gitlab-ci-multi-runner@10.5.0+dfsg-2?arch=source&distro=bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.4.2+dfsg-1

10.*

10.5.0+dfsg-2

Ecosystem specific

{
    "binaries": [
        {
            "binary_version": "10.5.0+dfsg-2",
            "binary_name": "gitlab-runner"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-39947.json"

Ubuntu:20.04:LTS / gitlab-ci-multi-runner