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CVE-2021-3155

Publication date 13 January 2021

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

5.5 · Medium

Score breakdown

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

Status

Package Ubuntu Release Status
snapd 21.10 impish
Fixed 2.54.3+21.10.1
21.04 hirsute Ignored
20.10 groovy Ignored
20.04 LTS focal
Fixed 2.54.3+20.04
18.04 LTS bionic
Fixed 2.54.3+18.04
16.04 LTS xenial
14.04 LTS trusty

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
snapd

Severity score breakdown

Parameter Value
Base score 5.5 · Medium
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

References

Related Ubuntu Security Notices (USN)

    • USN-5292-1
    • snapd vulnerabilities
    • 17 February 2022
    • USN-5292-2
    • snapd vulnerabilities
    • 18 February 2022
    • USN-5292-3
    • snapd vulnerabilities
    • 18 February 2022

Other references