CVE-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
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
3.8 LOW
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
canonicalCNA
3.8 LOW
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
CVEADP
---
---
Base Score
CVSS 3.x
EPSS Score
Percentile: 8%
VendorProductVersion
canonicalsnapd
𝑥
< 2.54.3
canonicalubuntu_linux
18.04
canonicalubuntu_linux
20.04
canonicalubuntu_linux
21.10
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
snapd
bullseye (security)
vulnerable
bullseye
no-dsa
buster
no-dsa
bookworm
2.57.6-1
fixed
sid
2.65.3-1
fixed
trixie
2.65.3-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
snapd
impish
Fixed 2.54.3+21.10.1
released
hirsute
ignored
groovy
ignored
focal
Fixed 2.54.3+20.04
released
bionic
Fixed 2.54.3+18.04
released
xenial
Fixed 2.54.3+16.04~esm2
released
trusty
Fixed 2.54.3+14.04~esm1
released
Common Weakness Enumeration
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
https://ubuntu.com/security/notices/USN-5292-1