USN-5638-3

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Source
https://ubuntu.com/security/notices/USN-5638-3
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5638-3.json
JSON Data
https://api.osv.dev/v1/vulns/USN-5638-3
Upstream
Related
Published
2022-11-23T15:09:26.783293Z
Modified
2025-07-16T08:34:45.174418Z
Summary
expat vulnerability
Details

USN-5638-1 fixed a vulnerability in Expat. This update provides the corresponding updates for Ubuntu 16.04 ESM, Ubuntu 18.04 LTS, Ubuntu 20.04 LTS, Ubuntu 22.04 LTS and Ubuntu 22.10. (CVE-2022-43680) This update also fixes a minor regression introduced in Ubuntu 18.04 LTS.

We apologize for the inconvenience.

Original advisory 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+esm7?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+esm7

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
2.1.0-7ubuntu0.16.04.5+esm6

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "expat",
            "binary_version": "2.1.0-7ubuntu0.16.04.5+esm7"
        },
        {
            "binary_name": "expat-dbgsym",
            "binary_version": "2.1.0-7ubuntu0.16.04.5+esm7"
        },
        {
            "binary_name": "lib64expat1",
            "binary_version": "2.1.0-7ubuntu0.16.04.5+esm7"
        },
        {
            "binary_name": "lib64expat1-dbgsym",
            "binary_version": "2.1.0-7ubuntu0.16.04.5+esm7"
        },
        {
            "binary_name": "lib64expat1-dev",
            "binary_version": "2.1.0-7ubuntu0.16.04.5+esm7"
        },
        {
            "binary_name": "libexpat1",
            "binary_version": "2.1.0-7ubuntu0.16.04.5+esm7"
        },
        {
            "binary_name": "libexpat1-dbgsym",
            "binary_version": "2.1.0-7ubuntu0.16.04.5+esm7"
        },
        {
            "binary_name": "libexpat1-dev",
            "binary_version": "2.1.0-7ubuntu0.16.04.5+esm7"
        },
        {
            "binary_name": "libexpat1-udeb",
            "binary_version": "2.1.0-7ubuntu0.16.04.5+esm7"
        },
        {
            "binary_name": "libexpat1-udeb-dbgsym",
            "binary_version": "2.1.0-7ubuntu0.16.04.5+esm7"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Ubuntu:18.04:LTS / expat

Package

Name
expat
Purl
pkg:deb/ubuntu/expat@2.2.5-3ubuntu0.9?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.2.5-3ubuntu0.9

Affected versions

2.*

2.2.3-1
2.2.3-2
2.2.5-0ubuntu2
2.2.5-3
2.2.5-3ubuntu0.1
2.2.5-3ubuntu0.2
2.2.5-3ubuntu0.4
2.2.5-3ubuntu0.7
2.2.5-3ubuntu0.8

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "expat",
            "binary_version": "2.2.5-3ubuntu0.9"
        },
        {
            "binary_name": "expat-dbgsym",
            "binary_version": "2.2.5-3ubuntu0.9"
        },
        {
            "binary_name": "libexpat1",
            "binary_version": "2.2.5-3ubuntu0.9"
        },
        {
            "binary_name": "libexpat1-dbgsym",
            "binary_version": "2.2.5-3ubuntu0.9"
        },
        {
            "binary_name": "libexpat1-dev",
            "binary_version": "2.2.5-3ubuntu0.9"
        },
        {
            "binary_name": "libexpat1-udeb",
            "binary_version": "2.2.5-3ubuntu0.9"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:20.04:LTS / expat

Package

Name
expat
Purl
pkg:deb/ubuntu/expat@2.2.9-1ubuntu0.6?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.2.9-1ubuntu0.6

Affected versions

2.*

2.2.7-2
2.2.9-1
2.2.9-1build1
2.2.9-1ubuntu0.2
2.2.9-1ubuntu0.4
2.2.9-1ubuntu0.5

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "expat",
            "binary_version": "2.2.9-1ubuntu0.6"
        },
        {
            "binary_name": "expat-dbgsym",
            "binary_version": "2.2.9-1ubuntu0.6"
        },
        {
            "binary_name": "libexpat1",
            "binary_version": "2.2.9-1ubuntu0.6"
        },
        {
            "binary_name": "libexpat1-dbgsym",
            "binary_version": "2.2.9-1ubuntu0.6"
        },
        {
            "binary_name": "libexpat1-dev",
            "binary_version": "2.2.9-1ubuntu0.6"
        },
        {
            "binary_name": "libexpat1-udeb",
            "binary_version": "2.2.9-1ubuntu0.6"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:22.04:LTS / expat

Package

Name
expat
Purl
pkg:deb/ubuntu/expat@2.4.7-1ubuntu0.2?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.4.7-1ubuntu0.2

Affected versions

2.*

2.4.1-2
2.4.1-3
2.4.2-1
2.4.3-1
2.4.3-2
2.4.4-1
2.4.6-1
2.4.7-1
2.4.7-1ubuntu0.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "expat",
            "binary_version": "2.4.7-1ubuntu0.2"
        },
        {
            "binary_name": "expat-dbgsym",
            "binary_version": "2.4.7-1ubuntu0.2"
        },
        {
            "binary_name": "libexpat1",
            "binary_version": "2.4.7-1ubuntu0.2"
        },
        {
            "binary_name": "libexpat1-dbgsym",
            "binary_version": "2.4.7-1ubuntu0.2"
        },
        {
            "binary_name": "libexpat1-dev",
            "binary_version": "2.4.7-1ubuntu0.2"
        }
    ],
    "availability": "No subscription required"
}