USN-4616-1

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Source
https://ubuntu.com/security/notices/USN-4616-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4616-1.json
JSON Data
https://api.test.osv.dev/v1/vulns/USN-4616-1
Upstream
Related
Published
2020-11-03T15:16:30.653745Z
Modified
2025-10-13T04:35:16Z
Summary
accountsservice vulnerabilities
Details

Kevin Backhouse discovered that AccountsService incorrectly dropped privileges. A local user could possibly use this issue to cause AccountsService to crash or hang, resulting in a denial of service. (CVE-2020-16126)

Kevin Backhouse discovered that AccountsService incorrectly handled reading .pam_environment files. A local user could possibly use this issue to cause AccountsService to crash or hang, resulting in a denial of service. This issue only affected Ubuntu 20.04 LTS and Ubuntu 20.10. (CVE-2020-16127)

Matthias Gerstner discovered that AccountsService incorrectly handled certain path checks. A local attacker could possibly use this issue to read arbitrary files. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2018-14036)

References

Affected packages

Ubuntu:16.04:LTS / accountsservice

Package

Name
accountsservice
Purl
pkg:deb/ubuntu/accountsservice@0.6.40-2ubuntu11.6?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.6.40-2ubuntu11.6

Affected versions

0.*

0.6.40-2ubuntu5
0.6.40-2ubuntu6
0.6.40-2ubuntu7
0.6.40-2ubuntu8
0.6.40-2ubuntu9
0.6.40-2ubuntu10
0.6.40-2ubuntu11
0.6.40-2ubuntu11.1
0.6.40-2ubuntu11.2
0.6.40-2ubuntu11.3

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "0.6.40-2ubuntu11.6",
            "binary_name": "accountsservice"
        },
        {
            "binary_version": "0.6.40-2ubuntu11.6",
            "binary_name": "gir1.2-accountsservice-1.0"
        },
        {
            "binary_version": "0.6.40-2ubuntu11.6",
            "binary_name": "libaccountsservice-dev"
        },
        {
            "binary_version": "0.6.40-2ubuntu11.6",
            "binary_name": "libaccountsservice0"
        }
    ]
}

Database specific 

{
    "cves_map": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "cves": [
            {
                "id": "CVE-2018-14036",
                "severity": [
                    {
                        "score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
                        "type": "CVSS_V3"
                    },
                    {
                        "score": "low",
                        "type": "Ubuntu"
                    }
                ]
            },
            {
                "id": "CVE-2020-16126",
                "severity": [
                    {
                        "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
                        "type": "CVSS_V3"
                    },
                    {
                        "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
                        "type": "CVSS_V3"
                    },
                    {
                        "score": "medium",
                        "type": "Ubuntu"
                    }
                ]
            }
        ]
    }
}

Ubuntu:18.04:LTS / accountsservice

Package

Name
accountsservice
Purl
pkg:deb/ubuntu/accountsservice@0.6.45-1ubuntu1.3?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.6.45-1ubuntu1.3

Affected versions

0.*

0.6.42-0ubuntu3
0.6.42-0ubuntu4
0.6.45-1ubuntu1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "0.6.45-1ubuntu1.3",
            "binary_name": "accountsservice"
        },
        {
            "binary_version": "0.6.45-1ubuntu1.3",
            "binary_name": "gir1.2-accountsservice-1.0"
        },
        {
            "binary_version": "0.6.45-1ubuntu1.3",
            "binary_name": "libaccountsservice-dev"
        },
        {
            "binary_version": "0.6.45-1ubuntu1.3",
            "binary_name": "libaccountsservice0"
        }
    ]
}

Database specific 

{
    "cves_map": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "cves": [
            {
                "id": "CVE-2018-14036",
                "severity": [
                    {
                        "score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
                        "type": "CVSS_V3"
                    },
                    {
                        "score": "low",
                        "type": "Ubuntu"
                    }
                ]
            },
            {
                "id": "CVE-2020-16126",
                "severity": [
                    {
                        "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
                        "type": "CVSS_V3"
                    },
                    {
                        "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
                        "type": "CVSS_V3"
                    },
                    {
                        "score": "medium",
                        "type": "Ubuntu"
                    }
                ]
            }
        ]
    }
}

Ubuntu:20.04:LTS / accountsservice

Package

Name
accountsservice
Purl
pkg:deb/ubuntu/accountsservice@0.6.55-0ubuntu12~20.04.4?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.6.55-0ubuntu12~20.04.4

Affected versions

0.*

0.6.55-0ubuntu10
0.6.55-0ubuntu11
0.6.55-0ubuntu12~20.04.1
0.6.55-0ubuntu12~20.04.2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "0.6.55-0ubuntu12~20.04.4",
            "binary_name": "accountsservice"
        },
        {
            "binary_version": "0.6.55-0ubuntu12~20.04.4",
            "binary_name": "gir1.2-accountsservice-1.0"
        },
        {
            "binary_version": "0.6.55-0ubuntu12~20.04.4",
            "binary_name": "libaccountsservice-dev"
        },
        {
            "binary_version": "0.6.55-0ubuntu12~20.04.4",
            "binary_name": "libaccountsservice0"
        }
    ]
}

Database specific 

{
    "cves_map": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "cves": [
            {
                "id": "CVE-2020-16126",
                "severity": [
                    {
                        "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
                        "type": "CVSS_V3"
                    },
                    {
                        "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L",
                        "type": "CVSS_V3"
                    },
                    {
                        "score": "medium",
                        "type": "Ubuntu"
                    }
                ]
            },
            {
                "id": "CVE-2020-16127",
                "severity": [
                    {
                        "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:R/S:U/C:N/I:N/A:L",
                        "type": "CVSS_V3"
                    },
                    {
                        "score": "medium",
                        "type": "Ubuntu"
                    }
                ]
            }
        ]
    }
}