CVE-2022-22823: Integer Overflow
First published: Mon Jan 10 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 Software | Affected Version | How 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 | 2.2.6-2+deb10u4 2.2.6-2+deb10u7 2.2.10-2+deb11u5 2.5.0-1 2.6.2-1 | |
| ubuntu/expat | <2.2.5-3ubuntu0.4 | 2.2.5-3ubuntu0.4 |
| ubuntu/expat | <2.2.9-1ubuntu0.2 | 2.2.9-1ubuntu0.2 |
| ubuntu/expat | <2.4.1-2ubuntu0.1 | 2.4.1-2ubuntu0.1 |
| ubuntu/expat | <2.4.3-1 | 2.4.3-1 |
| ubuntu/expat | <2.4.3-1 | 2.4.3-1 |
| ubuntu/expat | <2.4.3-1 | 2.4.3-1 |
| ubuntu/expat | <2.4.3-1 | 2.4.3-1 |
| ubuntu/expat | <2.4.3-1 | 2.4.3-1 |
| ubuntu/expat | <2.1.0-4ubuntu1.4+ | 2.1.0-4ubuntu1.4+ |
| ubuntu/expat | <2.1.0-7ubuntu0.16.04.5+ | 2.1.0-7ubuntu0.16.04.5+ |
| ubuntu/firefox | <98.0+ | 98.0+ |
| ubuntu/firefox | <98.0+ | 98.0+ |
| ubuntu/firefox | <98.0+ | 98.0+ |
| ubuntu/firefox | <1:1 | 1:1 |
| ubuntu/firefox | <1:1 | 1:1 |
| ubuntu/firefox | <1:1 | 1:1 |
| ubuntu/firefox | <1:1 | 1:1 |
| ubuntu/firefox | <1:1 | 1:1 |
| ubuntu/firefox | <98 | 98 |
| ubuntu/libxmltok | <1.2-4ubuntu0.18.04.1~ | 1.2-4ubuntu0.18.04.1~ |
| ubuntu/libxmltok | <1.2-4ubuntu0.20.04.1~ | 1.2-4ubuntu0.20.04.1~ |
| ubuntu/libxmltok | <1.2-4ubuntu0.22.04.1~ | 1.2-4ubuntu0.22.04.1~ |
| ubuntu/libxmltok | <1.2-3ubuntu0.16.04.1~ | 1.2-3ubuntu0.16.04.1~ |
| ubuntu/thunderbird | <1:91.11.0+ | 1:91.11.0+ |
| ubuntu/thunderbird | <1:91.11.0+ | 1:91.11.0+ |
Remedy
https://github.com/libexpat/libexpat/pull/539/commits/9f93e8036e842329863bf20395b8fb8f73834d9e
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2022-22823 https://nvd.nist.gov/vuln/detail/CVE-2022-22823 https://github.com/libexpat/libexpat/pull/539
- https://bugzilla.redhat.com/show_bug.cgi?id=2044464
- https://access.redhat.com/errata/RHSA-2022:1069
- https://access.redhat.com/errata/RHSA-2022:0951
- https://access.redhat.com/errata/RHSA-2022:7692
- https://access.redhat.com/errata/RHSA-2022:7144
- https://access.redhat.com/security/cve/cve-2022-22823
- http://www.openwall.com/lists/oss-security/2022/01/17/3
- https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf
- https://github.com/libexpat/libexpat/pull/539
- https://security.gentoo.org/glsa/202209-24
- https://www.debian.org/security/2022/dsa-5073
- https://www.tenable.com/security/tns-2022-05
- https://launchpad.net/bugs/cve/CVE-2022-22823
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2044465
- https://access.redhat.com/errata/RHSA-2022:7143
- https://github.com/libexpat/libexpat/commit/9f93e8036e842329863bf20395b8fb8f73834d9e
- https://security-tracker.debian.org/tracker/CVE-2022-22823
- https://ubuntu.com/security/notices/USN-5288-1
- https://ubuntu.com/security/notices/USN-5455-1
- https://www.cve.org/CVERecord?id=CVE-2022-22823
- https://nvd.nist.gov/vuln/detail/CVE-2022-22823
- https://github.com/libexpat/libexpat/pull/539/commits/9f93e8036e842329863bf20395b8fb8f73834d9e
- https://hg.mozilla.org/releases/mozilla-release/rev/1b20c84cd140d14859be41e1715ff886ac301836
- https://ubuntu.com/security/CVE-2022-22823
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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