USN-4221-1

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Source
https://ubuntu.com/security/notices/USN-4221-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4221-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-4221-1
Upstream
Related
Published
2019-12-11T00:17:36.494018Z
Modified
2025-12-08T10:32:09.270622Z
Summary
libpcap vulnerability
Details

It was discovered that libpcap did not properly validate PHB headers in some situations. An attacker could use this to cause a denial of service (memory exhaustion).

References

Affected packages

Ubuntu:Pro:14.04:LTS / libpcap

Package

Name
libpcap
Purl
pkg:deb/ubuntu/libpcap@1.5.3-2ubuntu0.1?arch=source&distro=trusty/esm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.5.3-2ubuntu0.1

Affected versions

1.*

1.4.0-2
1.5.1-1
1.5.2-1
1.5.3-1
1.5.3-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.5.3-2ubuntu0.1",
            "binary_name": "libpcap-dev"
        },
        {
            "binary_version": "1.5.3-2ubuntu0.1",
            "binary_name": "libpcap0.8"
        },
        {
            "binary_version": "1.5.3-2ubuntu0.1",
            "binary_name": "libpcap0.8-dev"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:Pro:14.04:LTS",
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2019-15165"
        }
    ]
}

Ubuntu:16.04:LTS / libpcap

Package

Name
libpcap
Purl
pkg:deb/ubuntu/libpcap@1.7.4-2ubuntu0.1?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.7.4-2ubuntu0.1

Affected versions

1.*

1.7.4-1
1.7.4-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.7.4-2ubuntu0.1",
            "binary_name": "libpcap-dev"
        },
        {
            "binary_version": "1.7.4-2ubuntu0.1",
            "binary_name": "libpcap0.8"
        },
        {
            "binary_version": "1.7.4-2ubuntu0.1",
            "binary_name": "libpcap0.8-dev"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:16.04:LTS",
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2019-15165"
        }
    ]
}

Ubuntu:18.04:LTS / libpcap

Package

Name
libpcap
Purl
pkg:deb/ubuntu/libpcap@1.8.1-6ubuntu1.18.04.1?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.8.1-6ubuntu1.18.04.1

Affected versions

1.*

1.8.1-5ubuntu1
1.8.1-6ubuntu1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.8.1-6ubuntu1.18.04.1",
            "binary_name": "libpcap-dev"
        },
        {
            "binary_version": "1.8.1-6ubuntu1.18.04.1",
            "binary_name": "libpcap0.8"
        },
        {
            "binary_version": "1.8.1-6ubuntu1.18.04.1",
            "binary_name": "libpcap0.8-dev"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:18.04:LTS",
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2019-15165"
        }
    ]
}