CWE
190
Advisory Published
Updated

CVE-2022-22823: Integer Overflow

First published: Sat Jan 08 2022(Updated: )

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

Credit: cve@mitre.org cve@mitre.org

Affected SoftwareAffected VersionHow to fix
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
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
redhat/expat<2.4.3
2.4.3
debian/expat
2.2.10-2+deb11u5
2.2.10-2+deb11u6
2.5.0-1
2.5.0-1+deb12u1
2.6.3-2

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Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is CVE-2022-22823?

    CVE-2022-22823 is a vulnerability in the Expat library (libexpat) before version 2.4.3 that allows an integer overflow, leading to process interruption.

  • What is the severity of CVE-2022-22823?

    The severity of CVE-2022-22823 is critical with a CVSS score of 9.8.

  • Which software is affected by CVE-2022-22823?

    The affected software includes Expat (libexpat) versions before 2.4.3, and specific versions of Tenable Nessus, xmlrpc-c, Debian Linux, Siemens SINEMA Remote Connect Server, and various Ubuntu packages (libxmltok, expat, firefox, thunderbird).

  • What is the remedy for CVE-2022-22823 in Expat (libexpat)?

    The remedy for CVE-2022-22823 in Expat (libexpat) is to update to version 2.4.3.

  • Where can I find more information about CVE-2022-22823?

    You can find more information about CVE-2022-22823 at the following references: [GitHub](https://github.com/libexpat/libexpat/pull/539), [Openwall](http://www.openwall.com/lists/oss-security/2022/01/17/3), [Red Hat Bugzilla](https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2044465).

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