CVE-2022-22826: Integer Overflow
First published: Sat Jan 08 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.
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 | 2.2.10-2+deb11u5 2.2.10-2+deb11u6 2.5.0-1 2.5.0-1+deb12u1 2.6.3-2 |
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2022-22826 https://nvd.nist.gov/vuln/detail/CVE-2022-22826 https://github.com/libexpat/libexpat/pull/539
- https://bugzilla.redhat.com/show_bug.cgi?id=2044484
- 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-2022-22826
- 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-2022-22826
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2044485
- https://access.redhat.com/errata/RHSA-2022:7143
- https://github.com/libexpat/libexpat/commit/9f93e8036e842329863bf20395b8fb8f73834d9e
- https://security-tracker.debian.org/tracker/CVE-2022-22826
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-22826
- https://nvd.nist.gov/vuln/detail/CVE-2022-22826
- https://ubuntu.com/security/CVE-2022-22826
Parent vulnerabilities
(Appears in the following advisories)
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2022-22826.
What is the severity of CVE-2022-22826?
The severity of CVE-2022-22826 is high (8.8).
What is the affected software?
The affected software includes Expat (libexpat) versions before 2.4.3, and some specific versions of Red Hat, Ubuntu, Debian, Firefox, libxmltok, Thunderbird, Nessus, and Siemens SINEMA Remote Connect Server.
How can the vulnerability be exploited?
The vulnerability can be exploited when processing a large number of prefixed XML attributes on a single tag, which can lead to unexpected termination due to integer overflow.
How do I fix CVE-2022-22826?
To fix CVE-2022-22826, update Expat (libexpat) to version 2.4.3 or apply the appropriate remedy for the specific affected software versions.
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