USN-5279-1

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Source
https://ubuntu.com/security/notices/USN-5279-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5279-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-5279-1
Upstream
Related
Published
2022-02-09T13:26:34.828118Z
Modified
2025-10-13T04:35:46Z
Summary
util-linux vulnerabilities
Details

It was discovered that util-linux incorrectly handled unmounting FUSE filesystems. A local attacker could possibly use this issue to unmount FUSE filesystems belonging to other users.

References

Affected packages

Ubuntu:20.04:LTS / util-linux

Package

Name
util-linux
Purl
pkg:deb/ubuntu/util-linux@2.34-0.1ubuntu9.3?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.34-0.1ubuntu9.3

Affected versions

2.*

2.34-0.1ubuntu2
2.34-0.1ubuntu4
2.34-0.1ubuntu5
2.34-0.1ubuntu6
2.34-0.1ubuntu7
2.34-0.1ubuntu8
2.34-0.1ubuntu9
2.34-0.1ubuntu9.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:2.34-0.1ubuntu9.3",
            "binary_name": "bsdutils"
        },
        {
            "binary_version": "2.34-0.1ubuntu9.3",
            "binary_name": "fdisk"
        },
        {
            "binary_version": "2.34-0.1ubuntu9.3",
            "binary_name": "libblkid-dev"
        },
        {
            "binary_version": "2.34-0.1ubuntu9.3",
            "binary_name": "libblkid1"
        },
        {
            "binary_version": "2.34-0.1ubuntu9.3",
            "binary_name": "libfdisk-dev"
        },
        {
            "binary_version": "2.34-0.1ubuntu9.3",
            "binary_name": "libfdisk1"
        },
        {
            "binary_version": "2.34-0.1ubuntu9.3",
            "binary_name": "libmount-dev"
        },
        {
            "binary_version": "2.34-0.1ubuntu9.3",
            "binary_name": "libmount1"
        },
        {
            "binary_version": "2.34-0.1ubuntu9.3",
            "binary_name": "libsmartcols-dev"
        },
        {
            "binary_version": "2.34-0.1ubuntu9.3",
            "binary_name": "libsmartcols1"
        },
        {
            "binary_version": "2.34-0.1ubuntu9.3",
            "binary_name": "libuuid1"
        },
        {
            "binary_version": "2.34-0.1ubuntu9.3",
            "binary_name": "mount"
        },
        {
            "binary_version": "2.34-0.1ubuntu9.3",
            "binary_name": "rfkill"
        },
        {
            "binary_version": "2.34-0.1ubuntu9.3",
            "binary_name": "util-linux"
        },
        {
            "binary_version": "2.34-0.1ubuntu9.3",
            "binary_name": "util-linux-locales"
        },
        {
            "binary_version": "2.34-0.1ubuntu9.3",
            "binary_name": "uuid-dev"
        },
        {
            "binary_version": "2.34-0.1ubuntu9.3",
            "binary_name": "uuid-runtime"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map

{
    "cves": [
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ],
            "id": "CVE-2021-3995"
        },
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ],
            "id": "CVE-2021-3996"
        }
    ],
    "ecosystem": "Ubuntu:20.04:LTS"
}