USN-4720-1

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Source
https://ubuntu.com/security/notices/USN-4720-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4720-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-4720-1
Upstream
Related
Published
2021-02-02T18:06:56Z
Modified
2026-02-10T04:42:02Z
Summary
apport vulnerabilities
Details

Itai Greenhut discovered that Apport incorrectly parsed certain files in the /proc filesystem. A local attacker could use this issue to escalate privileges and run arbitrary code. (CVE-2021-25682, CVE-2021-25683)

Itai Greenhut discovered that Apport incorrectly handled opening certain special files. A local attacker could possibly use this issue to cause Apport to hang, resulting in a denial of service. (CVE-2021-25684)

References

Affected packages

Ubuntu:16.04:LTS / apport

Package

Name
apport
Purl
pkg:deb/ubuntu/apport@2.20.1-0ubuntu2.30?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.20.1-0ubuntu2.30

Affected versions

2.*
2.19.1-0ubuntu3
2.19.2-0ubuntu1
2.19.2-0ubuntu2
2.19.2-0ubuntu3
2.19.2-0ubuntu4
2.19.2-0ubuntu5
2.19.2-0ubuntu6
2.19.2-0ubuntu8
2.19.2-0ubuntu9
2.19.3-0ubuntu1
2.19.3-0ubuntu2
2.19.3-0ubuntu3
2.19.4-0ubuntu1
2.19.4-0ubuntu2
2.20-0ubuntu2
2.20-0ubuntu3
2.20.1-0ubuntu1
2.20.1-0ubuntu2
2.20.1-0ubuntu2.1
2.20.1-0ubuntu2.2
2.20.1-0ubuntu2.4
2.20.1-0ubuntu2.5
2.20.1-0ubuntu2.6
2.20.1-0ubuntu2.9
2.20.1-0ubuntu2.10
2.20.1-0ubuntu2.12
2.20.1-0ubuntu2.13
2.20.1-0ubuntu2.14
2.20.1-0ubuntu2.15
2.20.1-0ubuntu2.16
2.20.1-0ubuntu2.17
2.20.1-0ubuntu2.18
2.20.1-0ubuntu2.19
2.20.1-0ubuntu2.20
2.20.1-0ubuntu2.21
2.20.1-0ubuntu2.22
2.20.1-0ubuntu2.23
2.20.1-0ubuntu2.24
2.20.1-0ubuntu2.25
2.20.1-0ubuntu2.26
2.20.1-0ubuntu2.27
2.20.1-0ubuntu2.28

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "2.20.1-0ubuntu2.30",
            "binary_name": "apport"
        },
        {
            "binary_version": "2.20.1-0ubuntu2.30",
            "binary_name": "apport-gtk"
        },
        {
            "binary_version": "2.20.1-0ubuntu2.30",
            "binary_name": "apport-kde"
        },
        {
            "binary_version": "2.20.1-0ubuntu2.30",
            "binary_name": "apport-noui"
        },
        {
            "binary_version": "2.20.1-0ubuntu2.30",
            "binary_name": "apport-retrace"
        },
        {
            "binary_version": "2.20.1-0ubuntu2.30",
            "binary_name": "apport-valgrind"
        },
        {
            "binary_version": "2.20.1-0ubuntu2.30",
            "binary_name": "dh-apport"
        },
        {
            "binary_version": "2.20.1-0ubuntu2.30",
            "binary_name": "python-apport"
        },
        {
            "binary_version": "2.20.1-0ubuntu2.30",
            "binary_name": "python-problem-report"
        },
        {
            "binary_version": "2.20.1-0ubuntu2.30",
            "binary_name": "python3-apport"
        },
        {
            "binary_version": "2.20.1-0ubuntu2.30",
            "binary_name": "python3-problem-report"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4720-1.json"
cves_map 
{
    "cves": [
        {
            "id": "CVE-2021-25682",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/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": "medium"
                }
            ]
        },
        {
            "id": "CVE-2021-25683",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/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": "medium"
                }
            ]
        },
        {
            "id": "CVE-2021-25684",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/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": "medium"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:16.04:LTS"
}

Ubuntu:18.04:LTS / apport

Package

Name
apport
Purl
pkg:deb/ubuntu/apport@2.20.9-0ubuntu7.23?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.20.9-0ubuntu7.23

Affected versions

2.*
2.20.7-0ubuntu3
2.20.7-0ubuntu3.1
2.20.7-0ubuntu4
2.20.8-0ubuntu1
2.20.8-0ubuntu2
2.20.8-0ubuntu3
2.20.8-0ubuntu4
2.20.8-0ubuntu5
2.20.8-0ubuntu6
2.20.8-0ubuntu7
2.20.8-0ubuntu8
2.20.8-0ubuntu9
2.20.8-0ubuntu10
2.20.9-0ubuntu1
2.20.9-0ubuntu2
2.20.9-0ubuntu4
2.20.9-0ubuntu5
2.20.9-0ubuntu6
2.20.9-0ubuntu7
2.20.9-0ubuntu7.1
2.20.9-0ubuntu7.2
2.20.9-0ubuntu7.3
2.20.9-0ubuntu7.4
2.20.9-0ubuntu7.5
2.20.9-0ubuntu7.6
2.20.9-0ubuntu7.7
2.20.9-0ubuntu7.8
2.20.9-0ubuntu7.9
2.20.9-0ubuntu7.11
2.20.9-0ubuntu7.12
2.20.9-0ubuntu7.13
2.20.9-0ubuntu7.14
2.20.9-0ubuntu7.15
2.20.9-0ubuntu7.16
2.20.9-0ubuntu7.17
2.20.9-0ubuntu7.18
2.20.9-0ubuntu7.19
2.20.9-0ubuntu7.20
2.20.9-0ubuntu7.21

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "2.20.9-0ubuntu7.23",
            "binary_name": "apport"
        },
        {
            "binary_version": "2.20.9-0ubuntu7.23",
            "binary_name": "apport-gtk"
        },
        {
            "binary_version": "2.20.9-0ubuntu7.23",
            "binary_name": "apport-kde"
        },
        {
            "binary_version": "2.20.9-0ubuntu7.23",
            "binary_name": "apport-noui"
        },
        {
            "binary_version": "2.20.9-0ubuntu7.23",
            "binary_name": "apport-retrace"
        },
        {
            "binary_version": "2.20.9-0ubuntu7.23",
            "binary_name": "apport-valgrind"
        },
        {
            "binary_version": "2.20.9-0ubuntu7.23",
            "binary_name": "dh-apport"
        },
        {
            "binary_version": "2.20.9-0ubuntu7.23",
            "binary_name": "python-apport"
        },
        {
            "binary_version": "2.20.9-0ubuntu7.23",
            "binary_name": "python-problem-report"
        },
        {
            "binary_version": "2.20.9-0ubuntu7.23",
            "binary_name": "python3-apport"
        },
        {
            "binary_version": "2.20.9-0ubuntu7.23",
            "binary_name": "python3-problem-report"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4720-1.json"
cves_map 
{
    "cves": [
        {
            "id": "CVE-2021-25682",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/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": "medium"
                }
            ]
        },
        {
            "id": "CVE-2021-25683",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/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": "medium"
                }
            ]
        },
        {
            "id": "CVE-2021-25684",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/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": "medium"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:18.04:LTS"
}

Ubuntu:20.04:LTS / apport

Package

Name
apport
Purl
pkg:deb/ubuntu/apport@2.20.11-0ubuntu27.16?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.20.11-0ubuntu27.16

Affected versions

2.*
2.20.11-0ubuntu8
2.20.11-0ubuntu9
2.20.11-0ubuntu13
2.20.11-0ubuntu14
2.20.11-0ubuntu15
2.20.11-0ubuntu16
2.20.11-0ubuntu17
2.20.11-0ubuntu18
2.20.11-0ubuntu19
2.20.11-0ubuntu20
2.20.11-0ubuntu21
2.20.11-0ubuntu22
2.20.11-0ubuntu24
2.20.11-0ubuntu25
2.20.11-0ubuntu26
2.20.11-0ubuntu27
2.20.11-0ubuntu27.2
2.20.11-0ubuntu27.3
2.20.11-0ubuntu27.4
2.20.11-0ubuntu27.6
2.20.11-0ubuntu27.8
2.20.11-0ubuntu27.9
2.20.11-0ubuntu27.10
2.20.11-0ubuntu27.11
2.20.11-0ubuntu27.12
2.20.11-0ubuntu27.13
2.20.11-0ubuntu27.14

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "2.20.11-0ubuntu27.16",
            "binary_name": "apport"
        },
        {
            "binary_version": "2.20.11-0ubuntu27.16",
            "binary_name": "apport-gtk"
        },
        {
            "binary_version": "2.20.11-0ubuntu27.16",
            "binary_name": "apport-kde"
        },
        {
            "binary_version": "2.20.11-0ubuntu27.16",
            "binary_name": "apport-noui"
        },
        {
            "binary_version": "2.20.11-0ubuntu27.16",
            "binary_name": "apport-retrace"
        },
        {
            "binary_version": "2.20.11-0ubuntu27.16",
            "binary_name": "apport-valgrind"
        },
        {
            "binary_version": "2.20.11-0ubuntu27.16",
            "binary_name": "dh-apport"
        },
        {
            "binary_version": "2.20.11-0ubuntu27.16",
            "binary_name": "python3-apport"
        },
        {
            "binary_version": "2.20.11-0ubuntu27.16",
            "binary_name": "python3-problem-report"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4720-1.json"
cves_map 
{
    "cves": [
        {
            "id": "CVE-2021-25682",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/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": "medium"
                }
            ]
        },
        {
            "id": "CVE-2021-25683",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/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": "medium"
                }
            ]
        },
        {
            "id": "CVE-2021-25684",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/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": "medium"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:20.04:LTS"
}