CVE-2021-3155lowCWE-276

CVE-2021-3155: low-severity vulnerability in Canonical Ltd. snapd

snapd created ~/snap with too-wide permissions

Published · Updated

Follow this CVE+ Monitor snapd+ Monitor snapd

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

8Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 3.8epss 0.3%
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
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
Affected products
Canonical Ltd. · snapd
Related CVEs — Canonical Ltd. snapd

In the same product, most dangerous first.

CVE-2023-1523CRITICALCVE-2023-1523EPSS 1.4%CVE-2021-44731HIGHsnapd could be made to escalate privileges and run programs as administratorEPSS 1.0%CVE-2024-5138HIGHCVE-2024-5138EPSS 0.8%CVE-2021-4120HIGHsnapd could be made to bypass intended access restrictions through snap content interfaces and layout pathsEPSS 0.4%CVE-2022-3328HIGHCVE-2022-3328EPSS 0.4%CVE-2021-44730HIGHsnapd could be made to escalate privileges and run programs as administratorEPSS 0.4%