USN-4531-1

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Source
https://ubuntu.com/security/notices/USN-4531-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4531-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-4531-1
Upstream
Related
Published
2020-09-22T13:57:23.605010Z
Modified
2025-10-13T04:35:14Z
Summary
busybox vulnerability
Details

It was discovered that the BusyBox wget applet incorrectly validated SSL certificates. A remote attacker could possibly use this issue to intercept secure communications.

References

Affected packages

Ubuntu:18.04:LTS / busybox

Package

Name
busybox
Purl
pkg:deb/ubuntu/busybox@1:1.27.2-2ubuntu3.3?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:1.27.2-2ubuntu3.3

Affected versions

1:1.*

1:1.22.0-19ubuntu2
1:1.27.2-1ubuntu3
1:1.27.2-1ubuntu4
1:1.27.2-2ubuntu2
1:1.27.2-2ubuntu3
1:1.27.2-2ubuntu3.1
1:1.27.2-2ubuntu3.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:1.27.2-2ubuntu3.3",
            "binary_name": "busybox"
        },
        {
            "binary_version": "1:1.27.2-2ubuntu3.3",
            "binary_name": "busybox-initramfs"
        },
        {
            "binary_version": "1:1.27.2-2ubuntu3.3",
            "binary_name": "busybox-static"
        },
        {
            "binary_version": "1:1.27.2-2ubuntu3.3",
            "binary_name": "busybox-syslogd"
        },
        {
            "binary_version": "1:1.27.2-2ubuntu3.3",
            "binary_name": "udhcpc"
        },
        {
            "binary_version": "1:1.27.2-2ubuntu3.3",
            "binary_name": "udhcpd"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:18.04:LTS",
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2018-1000500"
        }
    ]
}

Ubuntu:20.04:LTS / busybox

Package

Name
busybox
Purl
pkg:deb/ubuntu/busybox@1:1.30.1-4ubuntu6.2?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:1.30.1-4ubuntu6.2

Affected versions

1:1.*

1:1.30.1-4ubuntu4
1:1.30.1-4ubuntu5
1:1.30.1-4ubuntu6
1:1.30.1-4ubuntu6.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1:1.30.1-4ubuntu6.2",
            "binary_name": "busybox"
        },
        {
            "binary_version": "1:1.30.1-4ubuntu6.2",
            "binary_name": "busybox-initramfs"
        },
        {
            "binary_version": "1:1.30.1-4ubuntu6.2",
            "binary_name": "busybox-static"
        },
        {
            "binary_version": "1:1.30.1-4ubuntu6.2",
            "binary_name": "busybox-syslogd"
        },
        {
            "binary_version": "1:1.30.1-4ubuntu6.2",
            "binary_name": "udhcpc"
        },
        {
            "binary_version": "1:1.30.1-4ubuntu6.2",
            "binary_name": "udhcpd"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:20.04:LTS",
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2018-1000500"
        }
    ]
}