UBUNTU-CVE-2020-13776

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Source
https://ubuntu.com/security/CVE-2020-13776
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-13776.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2020-13776
Upstream
Published
2020-06-03T03:15:00Z
Modified
2025-09-08T16:46:09Z
Severity
  • 6.7 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
  • 6.7 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - low
Summary
[none]
Details

systemd through v245 mishandles numerical usernames such as ones composed of decimal digits or 0x followed by hex digits, as demonstrated by use of root privileges when privileges of the 0x0 user account were intended. NOTE: this issue exists because of an incomplete fix for CVE-2017-1000082.

References

Affected packages

Ubuntu:Pro:14.04:LTS / systemd

Package

Name
systemd
Purl
pkg:deb/ubuntu/systemd@204-5ubuntu20.31+esm2?arch=source&distro=esm-infra-legacy/trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

Other

204-0ubuntu18
204-0ubuntu19
204-5ubuntu3
204-5ubuntu5
204-5ubuntu6
204-5ubuntu7
204-5ubuntu8
204-5ubuntu9
204-5ubuntu10
204-5ubuntu11
204-5ubuntu13
204-5ubuntu14
204-5ubuntu15
204-5ubuntu16
204-5ubuntu17
204-5ubuntu18
204-5ubuntu19
204-5ubuntu20

204-5ubuntu20.*

204-5ubuntu20.2
204-5ubuntu20.3
204-5ubuntu20.4
204-5ubuntu20.5
204-5ubuntu20.6
204-5ubuntu20.7
204-5ubuntu20.8
204-5ubuntu20.9
204-5ubuntu20.10
204-5ubuntu20.11
204-5ubuntu20.12
204-5ubuntu20.13
204-5ubuntu20.14
204-5ubuntu20.15
204-5ubuntu20.18
204-5ubuntu20.19
204-5ubuntu20.20
204-5ubuntu20.21
204-5ubuntu20.22
204-5ubuntu20.24
204-5ubuntu20.25
204-5ubuntu20.26
204-5ubuntu20.28
204-5ubuntu20.29
204-5ubuntu20.31
204-5ubuntu20.31+esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:204-5ubuntu20.31+esm2",
            "binary_name": "gir1.2-gudev-1.0"
        },
        {
            "binary_version": "1:204-5ubuntu20.31+esm2",
            "binary_name": "libgudev-1.0-0"
        },
        {
            "binary_version": "1:204-5ubuntu20.31+esm2",
            "binary_name": "libgudev-1.0-dev"
        },
        {
            "binary_version": "204-5ubuntu20.31+esm2",
            "binary_name": "libpam-systemd"
        },
        {
            "binary_version": "204-5ubuntu20.31+esm2",
            "binary_name": "libsystemd-daemon-dev"
        },
        {
            "binary_version": "204-5ubuntu20.31+esm2",
            "binary_name": "libsystemd-daemon0"
        },
        {
            "binary_version": "204-5ubuntu20.31+esm2",
            "binary_name": "libsystemd-id128-0"
        },
        {
            "binary_version": "204-5ubuntu20.31+esm2",
            "binary_name": "libsystemd-id128-dev"
        },
        {
            "binary_version": "204-5ubuntu20.31+esm2",
            "binary_name": "libsystemd-journal-dev"
        },
        {
            "binary_version": "204-5ubuntu20.31+esm2",
            "binary_name": "libsystemd-journal0"
        },
        {
            "binary_version": "204-5ubuntu20.31+esm2",
            "binary_name": "libsystemd-login-dev"
        },
        {
            "binary_version": "204-5ubuntu20.31+esm2",
            "binary_name": "libsystemd-login0"
        },
        {
            "binary_version": "204-5ubuntu20.31+esm2",
            "binary_name": "libudev-dev"
        },
        {
            "binary_version": "204-5ubuntu20.31+esm2",
            "binary_name": "libudev1"
        },
        {
            "binary_version": "204-5ubuntu20.31+esm2",
            "binary_name": "python-systemd"
        },
        {
            "binary_version": "204-5ubuntu20.31+esm2",
            "binary_name": "systemd"
        },
        {
            "binary_version": "204-5ubuntu20.31+esm2",
            "binary_name": "systemd-services"
        },
        {
            "binary_version": "204-5ubuntu20.31+esm2",
            "binary_name": "udev"
        }
    ]
}

Ubuntu:Pro:16.04:LTS / systemd

Package

Name
systemd
Purl
pkg:deb/ubuntu/systemd@229-4ubuntu21.31+esm3?arch=source&distro=esm-infra/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

Other

225-1ubuntu9
227-2ubuntu1
227-2ubuntu2
228-1ubuntu2
228-2ubuntu1
228-2ubuntu2
228-3ubuntu1
228-4ubuntu1
228-4ubuntu2
228-5ubuntu1
228-5ubuntu2
228-5ubuntu3
228-6ubuntu1
229-1ubuntu2
229-1ubuntu4
229-2ubuntu1
229-3ubuntu1
229-3ubuntu2
229-4ubuntu1
229-4ubuntu4
229-4ubuntu5
229-4ubuntu6
229-4ubuntu7
229-4ubuntu8
229-4ubuntu10
229-4ubuntu11
229-4ubuntu12
229-4ubuntu13
229-4ubuntu16
229-4ubuntu17
229-4ubuntu19
229-4ubuntu20
229-4ubuntu21

229-4ubuntu21.*

229-4ubuntu21.1
229-4ubuntu21.2
229-4ubuntu21.3
229-4ubuntu21.4
229-4ubuntu21.5
229-4ubuntu21.6
229-4ubuntu21.8
229-4ubuntu21.9
229-4ubuntu21.10
229-4ubuntu21.15
229-4ubuntu21.16
229-4ubuntu21.17
229-4ubuntu21.19
229-4ubuntu21.21
229-4ubuntu21.22
229-4ubuntu21.23
229-4ubuntu21.27
229-4ubuntu21.28
229-4ubuntu21.29
229-4ubuntu21.31
229-4ubuntu21.31+esm1
229-4ubuntu21.31+esm3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "229-4ubuntu21.31+esm3",
            "binary_name": "libnss-myhostname"
        },
        {
            "binary_version": "229-4ubuntu21.31+esm3",
            "binary_name": "libnss-mymachines"
        },
        {
            "binary_version": "229-4ubuntu21.31+esm3",
            "binary_name": "libnss-resolve"
        },
        {
            "binary_version": "229-4ubuntu21.31+esm3",
            "binary_name": "libpam-systemd"
        },
        {
            "binary_version": "229-4ubuntu21.31+esm3",
            "binary_name": "libsystemd-dev"
        },
        {
            "binary_version": "229-4ubuntu21.31+esm3",
            "binary_name": "libsystemd0"
        },
        {
            "binary_version": "229-4ubuntu21.31+esm3",
            "binary_name": "libudev-dev"
        },
        {
            "binary_version": "229-4ubuntu21.31+esm3",
            "binary_name": "libudev1"
        },
        {
            "binary_version": "229-4ubuntu21.31+esm3",
            "binary_name": "systemd"
        },
        {
            "binary_version": "229-4ubuntu21.31+esm3",
            "binary_name": "systemd-container"
        },
        {
            "binary_version": "229-4ubuntu21.31+esm3",
            "binary_name": "systemd-coredump"
        },
        {
            "binary_version": "229-4ubuntu21.31+esm3",
            "binary_name": "systemd-journal-remote"
        },
        {
            "binary_version": "229-4ubuntu21.31+esm3",
            "binary_name": "systemd-sysv"
        },
        {
            "binary_version": "229-4ubuntu21.31+esm3",
            "binary_name": "udev"
        }
    ]
}

Ubuntu:Pro:18.04:LTS / systemd

Package

Name
systemd
Purl
pkg:deb/ubuntu/systemd@237-3ubuntu10.57+esm2?arch=source&distro=esm-infra/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

Other

234-2ubuntu12
235-2ubuntu3
235-3ubuntu2
235-3ubuntu3
237-3ubuntu3
237-3ubuntu4
237-3ubuntu6
237-3ubuntu7
237-3ubuntu8
237-3ubuntu10

237-3ubuntu10.*

237-3ubuntu10.2
237-3ubuntu10.3
237-3ubuntu10.4
237-3ubuntu10.6
237-3ubuntu10.9
237-3ubuntu10.11
237-3ubuntu10.12
237-3ubuntu10.13
237-3ubuntu10.15
237-3ubuntu10.17
237-3ubuntu10.19
237-3ubuntu10.20
237-3ubuntu10.21
237-3ubuntu10.22
237-3ubuntu10.23
237-3ubuntu10.24
237-3ubuntu10.25
237-3ubuntu10.26
237-3ubuntu10.28
237-3ubuntu10.29
237-3ubuntu10.31
237-3ubuntu10.33
237-3ubuntu10.38
237-3ubuntu10.39
237-3ubuntu10.40
237-3ubuntu10.41
237-3ubuntu10.42
237-3ubuntu10.43
237-3ubuntu10.44
237-3ubuntu10.45
237-3ubuntu10.46
237-3ubuntu10.47
237-3ubuntu10.48
237-3ubuntu10.49
237-3ubuntu10.50
237-3ubuntu10.51
237-3ubuntu10.52
237-3ubuntu10.53
237-3ubuntu10.54
237-3ubuntu10.56
237-3ubuntu10.57
237-3ubuntu10.57+esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "237-3ubuntu10.57+esm2",
            "binary_name": "libnss-myhostname"
        },
        {
            "binary_version": "237-3ubuntu10.57+esm2",
            "binary_name": "libnss-mymachines"
        },
        {
            "binary_version": "237-3ubuntu10.57+esm2",
            "binary_name": "libnss-resolve"
        },
        {
            "binary_version": "237-3ubuntu10.57+esm2",
            "binary_name": "libnss-systemd"
        },
        {
            "binary_version": "237-3ubuntu10.57+esm2",
            "binary_name": "libpam-systemd"
        },
        {
            "binary_version": "237-3ubuntu10.57+esm2",
            "binary_name": "libsystemd-dev"
        },
        {
            "binary_version": "237-3ubuntu10.57+esm2",
            "binary_name": "libsystemd0"
        },
        {
            "binary_version": "237-3ubuntu10.57+esm2",
            "binary_name": "libudev-dev"
        },
        {
            "binary_version": "237-3ubuntu10.57+esm2",
            "binary_name": "libudev1"
        },
        {
            "binary_version": "237-3ubuntu10.57+esm2",
            "binary_name": "systemd"
        },
        {
            "binary_version": "237-3ubuntu10.57+esm2",
            "binary_name": "systemd-container"
        },
        {
            "binary_version": "237-3ubuntu10.57+esm2",
            "binary_name": "systemd-coredump"
        },
        {
            "binary_version": "237-3ubuntu10.57+esm2",
            "binary_name": "systemd-journal-remote"
        },
        {
            "binary_version": "237-3ubuntu10.57+esm2",
            "binary_name": "systemd-sysv"
        },
        {
            "binary_version": "237-3ubuntu10.57+esm2",
            "binary_name": "systemd-tests"
        },
        {
            "binary_version": "237-3ubuntu10.57+esm2",
            "binary_name": "udev"
        }
    ]
}

Ubuntu:Pro:20.04:LTS / systemd

Package

Name
systemd
Purl
pkg:deb/ubuntu/systemd@245.4-4ubuntu3.24+esm1?arch=source&distro=esm-infra/focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

Other

242-7ubuntu3
243-2ubuntu1
243-3ubuntu1
244-3ubuntu1

244.*

244.1-0ubuntu2
244.1-0ubuntu3
244.2-1ubuntu1
244.3-1ubuntu1

245.*

245.2-1ubuntu1
245.2-1ubuntu2
245.4-2ubuntu1
245.4-4ubuntu1
245.4-4ubuntu3
245.4-4ubuntu3.1
245.4-4ubuntu3.2
245.4-4ubuntu3.3
245.4-4ubuntu3.4
245.4-4ubuntu3.5
245.4-4ubuntu3.6
245.4-4ubuntu3.7
245.4-4ubuntu3.10
245.4-4ubuntu3.11
245.4-4ubuntu3.13
245.4-4ubuntu3.14
245.4-4ubuntu3.15
245.4-4ubuntu3.16
245.4-4ubuntu3.17
245.4-4ubuntu3.18
245.4-4ubuntu3.19
245.4-4ubuntu3.20
245.4-4ubuntu3.21
245.4-4ubuntu3.22
245.4-4ubuntu3.23
245.4-4ubuntu3.24
245.4-4ubuntu3.24+esm1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "245.4-4ubuntu3.24+esm1",
            "binary_name": "libnss-myhostname"
        },
        {
            "binary_version": "245.4-4ubuntu3.24+esm1",
            "binary_name": "libnss-mymachines"
        },
        {
            "binary_version": "245.4-4ubuntu3.24+esm1",
            "binary_name": "libnss-resolve"
        },
        {
            "binary_version": "245.4-4ubuntu3.24+esm1",
            "binary_name": "libnss-systemd"
        },
        {
            "binary_version": "245.4-4ubuntu3.24+esm1",
            "binary_name": "libpam-systemd"
        },
        {
            "binary_version": "245.4-4ubuntu3.24+esm1",
            "binary_name": "libsystemd-dev"
        },
        {
            "binary_version": "245.4-4ubuntu3.24+esm1",
            "binary_name": "libsystemd0"
        },
        {
            "binary_version": "245.4-4ubuntu3.24+esm1",
            "binary_name": "libudev-dev"
        },
        {
            "binary_version": "245.4-4ubuntu3.24+esm1",
            "binary_name": "libudev1"
        },
        {
            "binary_version": "245.4-4ubuntu3.24+esm1",
            "binary_name": "systemd"
        },
        {
            "binary_version": "245.4-4ubuntu3.24+esm1",
            "binary_name": "systemd-container"
        },
        {
            "binary_version": "245.4-4ubuntu3.24+esm1",
            "binary_name": "systemd-coredump"
        },
        {
            "binary_version": "245.4-4ubuntu3.24+esm1",
            "binary_name": "systemd-journal-remote"
        },
        {
            "binary_version": "245.4-4ubuntu3.24+esm1",
            "binary_name": "systemd-sysv"
        },
        {
            "binary_version": "245.4-4ubuntu3.24+esm1",
            "binary_name": "systemd-tests"
        },
        {
            "binary_version": "245.4-4ubuntu3.24+esm1",
            "binary_name": "systemd-timesyncd"
        },
        {
            "binary_version": "245.4-4ubuntu3.24+esm1",
            "binary_name": "udev"
        }
    ]
}