UBUNTU-CVE-2020-16126

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Source
https://ubuntu.com/security/CVE-2020-16126
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-16126.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2020-16126
Related
Published
2020-11-03T00:00:00Z
Modified
2025-06-02T17:11:47Z
Severity
  • 3.3 (Low) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
  • 3.3 (Low) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Summary
[none]
Details

An Ubuntu-specific modification to AccountsService in versions before 0.6.55-0ubuntu13.2, among other earlier versions, improperly dropped the ruid, allowing untrusted users to send signals to AccountService, thus stopping it from handling D-Bus messages in a timely fashion.

References

Affected packages

Ubuntu:Pro:14.04:LTS / accountsservice

Package

Name
accountsservice
Purl
pkg:deb/ubuntu/accountsservice@0.6.35-0ubuntu7.3+esm2?arch=source&distro=trusty/esm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.6.35-0ubuntu7.3+esm2

Affected versions

0.*

0.6.34-0ubuntu6
0.6.34-0ubuntu7
0.6.35-0ubuntu1
0.6.35-0ubuntu2
0.6.35-0ubuntu3
0.6.35-0ubuntu4
0.6.35-0ubuntu5
0.6.35-0ubuntu6
0.6.35-0ubuntu7
0.6.35-0ubuntu7.1
0.6.35-0ubuntu7.2
0.6.35-0ubuntu7.3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "accountsservice",
            "binary_version": "0.6.35-0ubuntu7.3+esm2"
        },
        {
            "binary_name": "accountsservice-dbgsym",
            "binary_version": "0.6.35-0ubuntu7.3+esm2"
        },
        {
            "binary_name": "gir1.2-accountsservice-1.0",
            "binary_version": "0.6.35-0ubuntu7.3+esm2"
        },
        {
            "binary_name": "gir1.2-accountsservice-1.0-dbgsym",
            "binary_version": "0.6.35-0ubuntu7.3+esm2"
        },
        {
            "binary_name": "libaccountsservice-dbg",
            "binary_version": "0.6.35-0ubuntu7.3+esm2"
        },
        {
            "binary_name": "libaccountsservice-dev",
            "binary_version": "0.6.35-0ubuntu7.3+esm2"
        },
        {
            "binary_name": "libaccountsservice-dev-dbgsym",
            "binary_version": "0.6.35-0ubuntu7.3+esm2"
        },
        {
            "binary_name": "libaccountsservice-doc",
            "binary_version": "0.6.35-0ubuntu7.3+esm2"
        },
        {
            "binary_name": "libaccountsservice0",
            "binary_version": "0.6.35-0ubuntu7.3+esm2"
        },
        {
            "binary_name": "libaccountsservice0-dbgsym",
            "binary_version": "0.6.35-0ubuntu7.3+esm2"
        },
        {
            "binary_name": "libpam-pin",
            "binary_version": "0.6.35-0ubuntu7.3+esm2"
        },
        {
            "binary_name": "libpam-pin-dbgsym",
            "binary_version": "0.6.35-0ubuntu7.3+esm2"
        }
    ],
    "ubuntu_priority": "medium",
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

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 

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

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 

{
    "binaries": [
        {
            "binary_name": "accountsservice",
            "binary_version": "0.6.45-1ubuntu1.3"
        },
        {
            "binary_name": "accountsservice-dbgsym",
            "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": "libaccountsservice-doc",
            "binary_version": "0.6.45-1ubuntu1.3"
        },
        {
            "binary_name": "libaccountsservice0",
            "binary_version": "0.6.45-1ubuntu1.3"
        },
        {
            "binary_name": "libaccountsservice0-dbgsym",
            "binary_version": "0.6.45-1ubuntu1.3"
        }
    ],
    "ubuntu_priority": "medium",
    "availability": "No subscription required"
}

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 

{
    "binaries": [
        {
            "binary_name": "accountsservice",
            "binary_version": "0.6.55-0ubuntu12~20.04.4"
        },
        {
            "binary_name": "accountsservice-dbgsym",
            "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": "libaccountsservice-doc",
            "binary_version": "0.6.55-0ubuntu12~20.04.4"
        },
        {
            "binary_name": "libaccountsservice0",
            "binary_version": "0.6.55-0ubuntu12~20.04.4"
        },
        {
            "binary_name": "libaccountsservice0-dbgsym",
            "binary_version": "0.6.55-0ubuntu12~20.04.4"
        }
    ],
    "ubuntu_priority": "medium",
    "availability": "No subscription required"
}