CVSS 3.1
5.5 mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:NCVE-2021-3155
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
Severity
- EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 17% of CVEs (scores of 2026-10-31)
- CWE
- CWE-276
- Published
- Modified
- Record from
- the NVD, synced
Affected
- canonical:snapd
- canonical:ubuntu_linux
References
- https://github.com/snapcore/snapd/commit/6bcaeeccd16ed8298a301dd92f6907f88c24cc85
- https://github.com/snapcore/snapd/commit/7d2a966620002149891446a53cf114804808dcca
- https://ubuntu.com/security/notices/USN-5292-1
- https://github.com/snapcore/snapd/commit/6bcaeeccd16ed8298a301dd92f6907f88c24cc85
- https://github.com/snapcore/snapd/commit/7d2a966620002149891446a53cf114804808dcca