Archive package allows chmod of file outside of unpack target directory (containerd containerd)

CVE-2021-32760

MEDIUM 5.0

En bref

Source: NVD
EPSS: EPSS 1.59 % · centile 76 (2026-10-31)
État: PUBLISHED
Publiée: 2021-07-19 00:00 UTC
Mise à jour: 2024-11-19 14:27 UTC
Attribuée par: GitHub_M
Statut NVD: Modified

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Description

containerd is a container runtime. A bug was found in containerd versions prior to 1.4.8 and 1.5.4 where pulling and extracting a specially-crafted container image can result in Unix file permission changes for existing files in the host’s filesystem. Changes to file permissions can deny access to the expected owner of the file, widen access to others, or set extended bits like setuid, setgid, and sticky. This bug does not directly allow files to be read, modified, or executed without an additional cooperating process. This bug has been fixed in containerd 1.5.4 and 1.4.8. As a workaround, ensure that users only pull images from trusted sources. Linux security modules (LSMs) like SELinux and AppArmor can limit the files potentially affected by this bug through policies and profiles that prevent containerd from interacting with specific files.

Faiblesses (CWE)

CWE-668 — Exposition d'une ressource à la mauvaise sphère
CWE-732 — Attribution de permissions incorrecte sur une ressource critique

Références

Scores

Version	Score	Vecteur	Évalué par
CVSS 3.1	MEDIUM 5.0	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L	GitHub_M
CVSS 3.1	MEDIUM 5.0	CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L	NVD · security-advisories@github.com (Secondary)
CVSS 3.1	MEDIUM 6.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L	NVD · nvd@nist.gov (Primary)
CVSS 2.0	MEDIUM 6.8	AV:N/AC:M/Au:N/C:P/I:P/A:P	NVD · nvd@nist.gov (Primary)

Avis

GHSA-c72p-9xmj-rx3w — Archive package allows chmod of file outside of unpack target directory
GO-2022-0921 — Archive package allows chmod of file outside of unpack target directory in github.com/containerd/containerd

Références européennes

ENISA EUVD · EUVD-2021-1457
GCVE · GCVE-0-2021-32760

Avis du CERT-FR

CERTFR-2025-AVI-0590 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
CERTFR-2024-AVI-0350 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
CERTFR-2024-AVI-0199 — Multiples vulnérabilités dans IBM · cert.ssi.gouv.fr

Configurations affectées (CPE NVD)

cpe:2.3:a:linuxfoundation:containerd:*:*:*:*:*:*:*:* < 1.4.8
cpe:2.3:a:linuxfoundation:containerd:*:*:*:*:*:*:*:* ≥ 1.5.0 < 1.5.4
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*

Produits affectés

Produit	Versions
containerd · containerd	affected <= 1.4.7 ; affected >= 1.5.0, <= 1.5.3

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD

🟡 Archive package allows chmod of file outside of unpack target directory (containerd containerd)