Description
A race condition existed in the snapd 2.54.2 snap-confine binary when preparing a private mount namespace for a snap. This could allow a local attacker to gain root privileges by bind-mounting their own contents inside the snap's private mount namespace and causing snap-confine to execute arbitrary code and hence gain privilege escalation. Fixed in snapd versions 2.54.3+18.04, 2.54.3+20.04 and 2.54.3+21.10.1
Published: 2022-02-17
Score: 7.8 High
EPSS: 1.3% Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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Advisories
Source ID Title
Debian DSA Debian DSA DSA-5080-1 snapd security update
EUVD EUVD EUVD-2021-31546 A race condition existed in the snapd 2.54.2 snap-confine binary when preparing a private mount namespace for a snap. This could allow a local attacker to gain root privileges by bind-mounting their own contents inside the snap's private mount namespace and causing snap-confine to execute arbitrary code and hence gain privilege escalation. Fixed in snapd versions 2.54.3+18.04, 2.54.3+20.04 and 2.54.3+21.10.1
Ubuntu USN Ubuntu USN USN-5292-1 snapd vulnerabilities
Ubuntu USN Ubuntu USN USN-5292-2 snapd vulnerabilities
Ubuntu USN Ubuntu USN USN-5292-3 snapd vulnerabilities
History

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Canonical Snapd Ubuntu Linux
Debian Debian Linux
Fedoraproject Fedora
cve-icon MITRE

Status: PUBLISHED

Assigner: canonical

Published:

Updated: 2024-08-04T04:32:12.887Z

Reserved: 2021-12-08T00:00:00.000Z

Link: CVE-2021-44731

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2022-02-17T23:15:07.473

Modified: 2024-11-21T06:31:28.220

Link: CVE-2021-44731

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses