USN-5638-1

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Source
https://ubuntu.com/security/notices/USN-5638-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5638-1.json
JSON Data
https://api.test.osv.dev/v1/vulns/USN-5638-1
Upstream
Related
Published
2022-09-26T14:19:17.810640Z
Modified
2025-10-13T04:36:05Z
Summary
expat vulnerability
Details

Rhodri James discovered that Expat incorrectly handled memory when processing certain malformed XML files. An attacker could possibly use this issue to cause a crash or execute arbitrary code.

References

Affected packages

Ubuntu:Pro:16.04:LTS / expat

Package

Name
expat
Purl
pkg:deb/ubuntu/expat@2.1.0-7ubuntu0.16.04.5+esm6?arch=source&distro=esm-infra/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.1.0-7ubuntu0.16.04.5+esm6

Affected versions

2.*

2.1.0-7
2.1.0-7ubuntu0.16.04.1
2.1.0-7ubuntu0.16.04.2
2.1.0-7ubuntu0.16.04.3
2.1.0-7ubuntu0.16.04.4
2.1.0-7ubuntu0.16.04.5
2.1.0-7ubuntu0.16.04.5+esm2
2.1.0-7ubuntu0.16.04.5+esm5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.1.0-7ubuntu0.16.04.5+esm6",
            "binary_name": "expat"
        },
        {
            "binary_version": "2.1.0-7ubuntu0.16.04.5+esm6",
            "binary_name": "lib64expat1"
        },
        {
            "binary_version": "2.1.0-7ubuntu0.16.04.5+esm6",
            "binary_name": "lib64expat1-dev"
        },
        {
            "binary_version": "2.1.0-7ubuntu0.16.04.5+esm6",
            "binary_name": "libexpat1"
        },
        {
            "binary_version": "2.1.0-7ubuntu0.16.04.5+esm6",
            "binary_name": "libexpat1-dev"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:Pro:16.04: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:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2022-40674"
        }
    ]
}