DEBIAN-CVE-2021-44731

See a problem?
Please try reporting it to the source first.
Source
https://security-tracker.debian.org/tracker/CVE-2021-44731
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2021-44731.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2021-44731
Upstream
Published
2022-02-17T23:15:07Z
Modified
2025-09-30T05:16:29.897770Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

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

References

Affected packages

Debian:11 / snapd

Package

Name
snapd
Purl
pkg:deb/debian/snapd?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.49-1+deb11u1

Affected versions

2.*

2.49-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / snapd

Package

Name
snapd
Purl
pkg:deb/debian/snapd?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.54.3-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:13 / snapd

Package

Name
snapd
Purl
pkg:deb/debian/snapd?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.54.3-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:14 / snapd

Package

Name
snapd
Purl
pkg:deb/debian/snapd?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.54.3-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}