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
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Remediation
No vendor fix or workaround currently provided.
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Tracking
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Advisories
| Source | ID | Title |
|---|---|---|
Debian DSA |
DSA-5080-1 | snapd security update |
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 |
USN-5292-1 | snapd vulnerabilities |
Ubuntu USN |
USN-5292-2 | snapd vulnerabilities |
Ubuntu USN |
USN-5292-3 | snapd vulnerabilities |
References
History
No history.
Status: PUBLISHED
Assigner: canonical
Published:
Updated: 2024-08-04T04:32:12.887Z
Reserved: 2021-12-08T00:00:00.000Z
Link: CVE-2021-44731
No data.
Status : Modified
Published: 2022-02-17T23:15:07.473
Modified: 2024-11-21T06:31:28.220
Link: CVE-2021-44731
No data.
OpenCVE Enrichment
No data.
Weaknesses
Debian DSA
EUVD
Ubuntu USN