USN-8172-1

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Source
https://ubuntu.com/security/notices/USN-8172-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8172-1.json
JSON Data
https://api.test.osv.dev/v1/vulns/USN-8172-1
Upstream
Related
Published
2026-04-13T18:27:37Z
Modified
2026-04-14T10:08:35.829256699Z
Summary
kvmtool vulnerabilities
Details

It was discovered that kvmtool did not properly manage memory under certain circumstances. A malicious guest attacker could use this issue to cause kvmtool to crash, leading to a denial of service, or possibly execute arbitrary code on the host system. (CVE-2021-45464)

It was discovered that kvmtool incorrectly handled the 9p passthrough file system. A malicious guest attacker could possibly use this issue to open special files, escape the exported 9p tree, and execute arbitrary code on the host system. (CVE-2023-2861)

References

Affected packages

Ubuntu:Pro:16.04:LTS / kvmtool

Package

Name
kvmtool
Purl
pkg:deb/ubuntu/kvmtool@0.20151104-1ubuntu0.1~esm1?arch=source&distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.20151104-1ubuntu0.1~esm1

Affected versions

0.*
0.20150908-1
0.20151104-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "kvmtool",
            "binary_version": "0.20151104-1ubuntu0.1~esm1"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2021-45464",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "high"
                }
            ]
        },
        {
            "id": "CVE-2023-2861",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "low"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:Pro:16.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8172-1.json"

Ubuntu:Pro:18.04:LTS / kvmtool

Package

Name
kvmtool
Purl
pkg:deb/ubuntu/kvmtool@0.20170904-1ubuntu0.18.04.1~esm1?arch=source&distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.20170904-1ubuntu0.18.04.1~esm1

Affected versions

0.*
0.20161128-1
0.20170904-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "kvmtool",
            "binary_version": "0.20170904-1ubuntu0.18.04.1~esm1"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2021-45464",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "high"
                }
            ]
        },
        {
            "id": "CVE-2023-2861",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "low"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:Pro:18.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8172-1.json"

Ubuntu:Pro:20.04:LTS / kvmtool

Package

Name
kvmtool
Purl
pkg:deb/ubuntu/kvmtool@0.20170904-1ubuntu0.20.04.1~esm1?arch=source&distro=esm-apps/focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.20170904-1ubuntu0.20.04.1~esm1

Affected versions

0.*
0.20170904-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "kvmtool",
            "binary_version": "0.20170904-1ubuntu0.20.04.1~esm1"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2021-45464",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "high"
                }
            ]
        },
        {
            "id": "CVE-2023-2861",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "low"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:Pro:20.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8172-1.json"

Ubuntu:Pro:22.04:LTS / kvmtool

Package

Name
kvmtool
Purl
pkg:deb/ubuntu/kvmtool@0.20170904-1.1ubuntu0.1~esm2?arch=source&distro=esm-apps/jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.20170904-1.1ubuntu0.1~esm2

Affected versions

0.*
0.20170904-1.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "kvmtool",
            "binary_version": "0.20170904-1.1ubuntu0.1~esm2"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2021-45464",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "high"
                }
            ]
        },
        {
            "id": "CVE-2023-2861",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "low"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:Pro:22.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8172-1.json"