UBUNTU-CVE-2020-36657

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Source
https://ubuntu.com/security/CVE-2020-36657
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-36657.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2020-36657
Upstream
Published
2023-01-26T21:15:00Z
Modified
2026-05-20T16:04:32Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

uptimed before 0.4.6-r1 on Gentoo allows local users (with access to the uptimed user account) to gain root privileges by creating a hard link within the /var/spool/uptimed directory, because there is an unsafe chown -R call.

References

Affected packages

Ubuntu:16.04:LTS
uptimed

Package

Name
uptimed
Purl
pkg:deb/ubuntu/uptimed?arch=source&distro=xenial

Affected ranges

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

Affected versions

1:0.*
1:0.3.17-4

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libuptimed0",
            "binary_version": "1:0.3.17-4"
        },
        {
            "binary_name": "uprecords-cgi",
            "binary_version": "1:0.3.17-4"
        },
        {
            "binary_name": "uptimed",
            "binary_version": "1:0.3.17-4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-36657.json"
Ubuntu:18.04:LTS
uptimed

Package

Name
uptimed
Purl
pkg:deb/ubuntu/uptimed?arch=source&distro=bionic

Affected ranges

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

Affected versions

1:0.*
1:0.4.0+git20150923.6b22106-1.1
1:0.4.0+git20150923.6b22106-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "uptimed",
            "binary_version": "1:0.4.0+git20150923.6b22106-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-36657.json"
Ubuntu:20.04:LTS
uptimed

Package

Name
uptimed
Purl
pkg:deb/ubuntu/uptimed?arch=source&distro=focal

Affected ranges

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

Affected versions

1:0.*
1:0.4.1-1
1:0.4.2-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "uptimed",
            "binary_version": "1:0.4.2-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-36657.json"
Ubuntu:22.04:LTS
uptimed

Package

Name
uptimed
Purl
pkg:deb/ubuntu/uptimed?arch=source&distro=jammy

Affected ranges

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

Affected versions

1:0.*
1:0.4.3-1
1:0.4.5-1
1:0.4.6-1
1:0.4.6-2
1:0.4.6-3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "uptimed",
            "binary_version": "1:0.4.6-3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-36657.json"
Ubuntu:24.04:LTS
uptimed

Package

Name
uptimed
Purl
pkg:deb/ubuntu/uptimed?arch=source&distro=noble

Affected ranges

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

Affected versions

1:0.*
1:0.4.6-3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "uptimed",
            "binary_version": "1:0.4.6-3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-36657.json"
Ubuntu:25.10
uptimed

Package

Name
uptimed
Purl
pkg:deb/ubuntu/uptimed?arch=source&distro=questing

Affected ranges

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

Affected versions

1:0.*
1:0.4.6-3.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "uptimed",
            "binary_version": "1:0.4.6-3.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-36657.json"
Ubuntu:26.04:LTS
uptimed

Package

Name
uptimed
Purl
pkg:deb/ubuntu/uptimed?arch=source&distro=resolute

Affected ranges

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

Affected versions

1:0.*
1:0.4.6-3.1
1:0.4.6-3.1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "uptimed",
            "binary_version": "1:0.4.6-3.1build1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-36657.json"