USN-4723-1

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Source
https://ubuntu.com/security/notices/USN-4723-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4723-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-4723-1
Upstream
Related
Published
2021-02-08T12:43:56.703382Z
Modified
2025-10-13T04:35:20Z
Summary
php-pear vulnerability
Details

It was discovered that PEAR incorrectly handled symbolic links in archives. A remote attacker could possibly use this issue to execute arbitrary code.

References

Affected packages

Ubuntu:16.04:LTS / php-pear

Package

Name
php-pear
Purl
pkg:deb/ubuntu/php-pear@1:1.10.1+submodules+notgz-6ubuntu0.3?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:1.10.1+submodules+notgz-6ubuntu0.3

Affected versions

1:1.*

1:1.10.1+submodules+notgz-4
1:1.10.1+submodules+notgz-6
1:1.10.1+submodules+notgz-6ubuntu0.1
1:1.10.1+submodules+notgz-6ubuntu0.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:1.10.1+submodules+notgz-6ubuntu0.3",
            "binary_name": "php-pear"
        }
    ],
    "availability": "No subscription required"
}

Database specific 

{
    "cves_map": {
        "cves": [
            {
                "severity": [
                    {
                        "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
                        "type": "CVSS_V3"
                    },
                    {
                        "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
                        "type": "CVSS_V3"
                    },
                    {
                        "score": "medium",
                        "type": "Ubuntu"
                    }
                ],
                "id": "CVE-2020-36193"
            }
        ],
        "ecosystem": "Ubuntu:16.04:LTS"
    }
}

Ubuntu:18.04:LTS / php-pear

Package

Name
php-pear
Purl
pkg:deb/ubuntu/php-pear@1:1.10.5+submodules+notgz-1ubuntu1.18.04.3?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:1.10.5+submodules+notgz-1ubuntu1.18.04.3

Affected versions

1:1.*

1:1.10.5+submodules+notgz-1
1:1.10.5+submodules+notgz-1ubuntu1
1:1.10.5+submodules+notgz-1ubuntu1.18.04.1
1:1.10.5+submodules+notgz-1ubuntu1.18.04.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:1.10.5+submodules+notgz-1ubuntu1.18.04.3",
            "binary_name": "php-pear"
        }
    ],
    "availability": "No subscription required"
}

Database specific 

{
    "cves_map": {
        "cves": [
            {
                "severity": [
                    {
                        "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
                        "type": "CVSS_V3"
                    },
                    {
                        "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
                        "type": "CVSS_V3"
                    },
                    {
                        "score": "medium",
                        "type": "Ubuntu"
                    }
                ],
                "id": "CVE-2020-36193"
            }
        ],
        "ecosystem": "Ubuntu:18.04:LTS"
    }
}

Ubuntu:20.04:LTS / php-pear

Package

Name
php-pear
Purl
pkg:deb/ubuntu/php-pear@1:1.10.9+submodules+notgz-1ubuntu0.20.04.2?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:1.10.9+submodules+notgz-1ubuntu0.20.04.2

Affected versions

1:1.*

1:1.10.9+submodules+notgz-1
1:1.10.9+submodules+notgz-1ubuntu0.20.04.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:1.10.9+submodules+notgz-1ubuntu0.20.04.2",
            "binary_name": "php-pear"
        }
    ],
    "availability": "No subscription required"
}

Database specific 

{
    "cves_map": {
        "cves": [
            {
                "severity": [
                    {
                        "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
                        "type": "CVSS_V3"
                    },
                    {
                        "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
                        "type": "CVSS_V3"
                    },
                    {
                        "score": "medium",
                        "type": "Ubuntu"
                    }
                ],
                "id": "CVE-2020-36193"
            }
        ],
        "ecosystem": "Ubuntu:20.04:LTS"
    }
}