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CVE-2022-3328

Publication date 30 November 2022

Last updated 24 July 2024


Ubuntu priority

Cvss 3 Severity Score

7.8 · High

Score breakdown

Race condition in snap-confine's must_mkdir_and_open_with_perms()

From the Ubuntu Security Team

The Qualys Research Team discovered that a race condition existed in the snapd snap-confine binary when preparing the private /tmp mount for a snap. A local attacker could possibly use this issue to escalate privileges and execute arbitrary code.

Read the notes from the security team

Status

Package Ubuntu Release Status
snapd 24.04 LTS noble
Not affected
23.10 mantic
Not affected
23.04 lunar
Not affected
22.10 kinetic
Fixed 2.57.5+22.10ubuntu0.1
22.04 LTS jammy
Fixed 2.57.5+22.04ubuntu0.1
20.04 LTS focal
Fixed 2.57.5+20.04ubuntu0.1
18.04 LTS bionic
Fixed 2.57.5+18.04ubuntu0.1
16.04 LTS xenial
14.04 LTS trusty Ignored end of standard support

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Notes


alexmurray

vuln introduced as part of the fix for CVE-2021-44731 - as such affects upstream versions 2.54.3 to 2.57.5

Severity score breakdown

Parameter Value
Base score 7.8 · High
Attack vector Local
Attack complexity High
Privileges required Low
User interaction None
Scope Changed
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H

References

Related Ubuntu Security Notices (USN)

Other references