USN-3356-1

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Source
https://ubuntu.com/security/notices/USN-3356-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-3356-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-3356-1
Upstream
Related
Published
2017-07-19T16:56:14.316787Z
Modified
2025-10-13T04:34:27Z
Summary
expat vulnerability
Details

It was discovered that Expat incorrectly handled certain external entities. A remote attacker could possibly use this issue to cause Expat to hang, resulting in a denial of service.

References

Affected packages

Ubuntu:14.04:LTS / expat

Package

Name
expat
Purl
pkg:deb/ubuntu/expat@2.1.0-4ubuntu1.4?arch=source&distro=trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.1.0-4ubuntu1.4

Affected versions

2.*

2.1.0-4
2.1.0-4ubuntu1
2.1.0-4ubuntu1.1
2.1.0-4ubuntu1.2
2.1.0-4ubuntu1.3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.1.0-4ubuntu1.4",
            "binary_name": "expat"
        },
        {
            "binary_version": "2.1.0-4ubuntu1.4",
            "binary_name": "lib64expat1"
        },
        {
            "binary_version": "2.1.0-4ubuntu1.4",
            "binary_name": "lib64expat1-dev"
        },
        {
            "binary_version": "2.1.0-4ubuntu1.4",
            "binary_name": "libexpat1"
        },
        {
            "binary_version": "2.1.0-4ubuntu1.4",
            "binary_name": "libexpat1-dev"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map

{
    "cves": [
        {
            "id": "CVE-2017-9233",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:14.04:LTS"
}

Ubuntu:16.04:LTS / expat

Package

Name
expat
Purl
pkg:deb/ubuntu/expat@2.1.0-7ubuntu0.16.04.3?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.1.0-7ubuntu0.16.04.3

Affected versions

2.*

2.1.0-7
2.1.0-7ubuntu0.16.04.1
2.1.0-7ubuntu0.16.04.2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.1.0-7ubuntu0.16.04.3",
            "binary_name": "expat"
        },
        {
            "binary_version": "2.1.0-7ubuntu0.16.04.3",
            "binary_name": "lib64expat1"
        },
        {
            "binary_version": "2.1.0-7ubuntu0.16.04.3",
            "binary_name": "lib64expat1-dev"
        },
        {
            "binary_version": "2.1.0-7ubuntu0.16.04.3",
            "binary_name": "libexpat1"
        },
        {
            "binary_version": "2.1.0-7ubuntu0.16.04.3",
            "binary_name": "libexpat1-dev"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map

{
    "cves": [
        {
            "id": "CVE-2017-9233",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:16.04:LTS"
}