CVE-2022-22827: Integer Overflow

Published Jan 8, 2022
·
Updated

expat (libexpat) is susceptible to a software flaw that causes process interruption. When processing a large number of prefixed XML attributes on a single tag can libexpat can terminate unexpectedly due to integer overflow. The highest threat from this vulnerability is to availability, confidentiality and integrity.

Other sources

Expat could allow a remote attacker to execute arbitrary code on the system, caused by an integer overflow of storeAtts in xmlparse.c. By persuading a victim to open a specially-crafted file, an attacker could exploit this vulnerability to execute arbitrary code on the system.

— IBM

storeAtts in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.

Affected Software

13 affected componentsFixes available
redhat/expat<0:2.1.0-14.el7_9
0:2.1.0-14.el7_9
redhat/expat<0:2.2.5-4.el8_5.3
0:2.2.5-4.el8_5.3
redhat/xmlrpc-c<0:1.51.0-8.el8
0:1.51.0-8.el8
IBM Cognos Analytics<=12.0.0-12.0.3
IBM Cognos Analytics<=11.2.0-11.2.4 FP4
redhat/expat<2.4.3
2.4.3
Libexpat Project Libexpat<2.4.3
Tenable Nessus<8.15.3
Tenable Nessus>=10.0.0<10.1.1
Debian Debian Linux=10.0
Debian Debian Linux=11.0
Siemens SINEMA Remote Connect Server<3.1
debian/expat
2.2.10-2+deb11u52.2.10-2+deb11u72.5.0-1+deb12u12.7.1-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/expat to a version that resolves this vulnerability.

    Fixed in 0:2.1.0-14.el7_9
  2. Upgrade

    Upgrade redhat/expat to a version that resolves this vulnerability.

    Fixed in 0:2.2.5-4.el8_5.3
  3. Upgrade

    Upgrade redhat/xmlrpc-c to a version that resolves this vulnerability.

    Fixed in 0:1.51.0-8.el8
  4. Upgrade

    Upgrade debian/expat to a version that resolves this vulnerability.

    Fixed in 2.2.10-2+deb11u5Fixed in 2.2.10-2+deb11u7Fixed in 2.5.0-1+deb12u1Fixed in 2.7.1-1
  5. Upgrade

    Upgrade redhat/expat to a version that resolves this vulnerability.

    Fixed in 2.4.3
  6. Upgrade

    Upgrade expat (libexpat) to a version that resolves this vulnerability.

    Fixed in 2.4.3

Event History

Jan 8, 2022
CVE Published
via MITRE·02:56 AM
Data Sourced
via MITRE·02:56 AM
Description
Jan 10, 2022
Data Sourced
via NVD·02:12 PM
DescriptionSeverityWeaknessAffected Software
Jan 24, 2022
Data Sourced
via Red Hat·05:05 PM
DescriptionSeverityAffected Software
Jan 12, 2024
Data Sourced
via Launchpad·12:07 AM
Description
Jan 18, 2025
Data Sourced
via Ubuntu·02:21 AM
RemedyDescriptionSeverityAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Frequently Asked Questions

1

What is CVE-2022-22827?

CVE-2022-22827 is a vulnerability in Expat (libexpat) before version 2.4.3 that allows an integer overflow and can cause process interruption.

2

What is the severity of CVE-2022-22827?

The severity of CVE-2022-22827 is high, with a CVSS score of 8.8.

3

How does CVE-2022-22827 affect Expat (libexpat)?

CVE-2022-22827 affects Expat (libexpat) versions before 2.4.3.

4

What is the impact of CVE-2022-22827?

The highest threat from CVE-2022-22827 is to availability and confidentiality.

5

How can I fix CVE-2022-22827?

To fix CVE-2022-22827, update Expat (libexpat) to version 2.4.3.

Company

Resources

Contact

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