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Debian Security Bug TrackerDEBIANCVE:CVE-2021-39947

HistoryJun 06, 2022 - 5:15 p.m.

CVE-2021-39947

2022-06-0617:15:09

Debian Security Bug Tracker

security-tracker.debian.org

gitlab

runner

buffer

vulnerability

unix

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:N/I:P/A:N

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

EPSS

0.001

Percentile

34.3%

JSON

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

OSVersionArchitecturePackageVersionFilename
Debian999allgitlab-ci-multi-runner< 14.10.1-1gitlab-ci-multi-runner_14.10.1-1_all.deb

OS	Version	Architecture	Package	Version	Filename
Debian	999	all	gitlab-ci-multi-runner	< 14.10.1-1	gitlab-ci-multi-runner_14.10.1-1_all.deb

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:N/I:P/A:N

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

NONE

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

EPSS

0.001

Percentile

34.3%

JSON

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