CVE-2021-3155

MediumCVSS 5.5/10Last modified Jun 17, 2026

Description

snapd 2.54.2 and earlier created ~/snap directories in user home directories without specifying owner-only permissions. This could allow a local attacker to read information that should have been private. Fixed in snapd versions 2.54.3+18.04, 2.54.3+20.04 and 2.54.3+21.10.1

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-276

Affected software

Vendor	Product	Versions
Canonical Ltd.	snapd	>= unspecified, <= 2.54.2

References

https://github.com/snapcore/snapd/commit/6bcaeeccd16ed8298a301dd92f6907f88c24cc85Patch, Third Party Advisory
https://github.com/snapcore/snapd/commit/7d2a966620002149891446a53cf114804808dccaPatch, Third Party Advisory
https://ubuntu.com/security/notices/USN-5292-1Patch, Vendor Advisory
https://github.com/snapcore/snapd/commit/6bcaeeccd16ed8298a301dd92f6907f88c24cc85Patch, Third Party Advisory
https://github.com/snapcore/snapd/commit/7d2a966620002149891446a53cf114804808dccaPatch, Third Party Advisory
https://ubuntu.com/security/notices/USN-5292-1Patch, Vendor Advisory

Timeline

Published: Feb 17, 2022
Last modified: Jun 17, 2026
NVD status: Modified

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