CVE-2021-44731

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Source
https://cve.org/CVERecord?id=CVE-2021-44731
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-44731.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-44731
Downstream
Published
2022-02-17T23:15:07.473Z
Modified
2026-04-10T04:36:16.058250Z
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

Git / github.com/snapcore/snapd

Affected ranges

Type
GIT
Repo
https://github.com/snapcore/snapd
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
f6ff602cae4755eb38d1bbb20fa15752cb3b763a
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "2.54.2"
        }
    ]
}

Affected versions

1.*
1.0-0ubuntu1
1.0.1-0ubuntu1
1.1-0ubuntu1
1.1.1-0ubuntu1
1.1.2-0ubuntu1
1.2-0ubuntu1
1.3ubuntu1
1.4ubuntu1
1.5ubuntu1
1.6ubuntu1
1.7.2+20160113ubuntu1
1.7.2+20160204ubuntu1
1.7.2+20160223ubuntu1
1.7.2ubuntu1
1.7.3+20160225ubuntu1
1.7.3+20160303ubuntu1
1.7.3+20160303ubuntu2
1.7.3+20160303ubuntu3
1.7.3+20160303ubuntu4
1.7.3+20160308ubuntu1
1.7.3+20160310ubuntu1
1.7ubuntu1
1.9
1.9.1
1.9.2
1.9.3
1.9.4
2.*
2.0
2.0.10
2.0.3
2.0.4
2.0.5
2.0.6
2.0.7
2.0.8
2.0.9
2.11
2.12
2.13
2.14
2.14.1
2.14.2.16.04
2.15
2.15.2
2.54
2.54.1
2.54.2
Other
ppa
untagged-ec50ee5bfb45daefc236

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-44731.json"
unresolved_ranges 
[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "18.04"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "20.04"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "21.10"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "34"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "35"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "10.0"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "11.0"
            }
        ]
    }
]