CVE-2022-25236
First published: Tue Feb 15 2022(Updated: )
xmlparse.c in Expat (aka libexpat) before 2.4.5 allows attackers to insert namespace-separator characters into namespace URIs.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/expat | <0:2.0.1-14.el6_10 | 0:2.0.1-14.el6_10 |
| redhat/firefox | <0:91.7.0-3.el7_9 | 0:91.7.0-3.el7_9 |
| redhat/thunderbird | <0:91.7.0-2.el7_9 | 0:91.7.0-2.el7_9 |
| redhat/expat | <0:2.1.0-14.el7_9 | 0:2.1.0-14.el7_9 |
| redhat/firefox | <0:91.7.0-3.el8_5 | 0:91.7.0-3.el8_5 |
| redhat/thunderbird | <0:91.7.0-2.el8_5 | 0:91.7.0-2.el8_5 |
| redhat/mingw-expat | <0:2.4.8-1.el8 | 0:2.4.8-1.el8 |
| redhat/expat | <0:2.2.5-4.el8_5.3 | 0:2.2.5-4.el8_5.3 |
| redhat/firefox | <0:91.7.0-3.el8_1 | 0:91.7.0-3.el8_1 |
| redhat/thunderbird | <0:91.7.0-2.el8_1 | 0:91.7.0-2.el8_1 |
| redhat/expat | <0:2.2.5-3.el8_1.1 | 0:2.2.5-3.el8_1.1 |
| redhat/firefox | <0:91.7.0-3.el8_2 | 0:91.7.0-3.el8_2 |
| redhat/thunderbird | <0:91.7.0-2.el8_2 | 0:91.7.0-2.el8_2 |
| redhat/expat | <0:2.2.5-3.el8_2.2 | 0:2.2.5-3.el8_2.2 |
| redhat/firefox | <0:91.7.0-3.el8_4 | 0:91.7.0-3.el8_4 |
| redhat/thunderbird | <0:91.7.0-2.el8_4 | 0:91.7.0-2.el8_4 |
| redhat/expat | <0:2.2.5-4.el8_4.2 | 0:2.2.5-4.el8_4.2 |
| redhat/redhat-virtualization-host | <0:4.3.22-20220330.1.el7_9 | 0:4.3.22-20220330.1.el7_9 |
| Libexpat Project Libexpat | <2.4.5 | |
| Debian Debian Linux | =10.0 | |
| Debian Debian Linux | =11.0 | |
| Oracle HTTP Server | =12.2.1.3.0 | |
| Oracle HTTP Server | =12.2.1.4.0 | |
| Oracle ZFS Storage Appliance Kit | =8.8 | |
| Siemens SINEMA Remote Connect Server | <3.1 | |
| redhat/expat | <2.4.5 | 2.4.5 |
| 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 | <2.4.5-2 | 2.4.5-2 |
| ubuntu/expat | <2.4.5-2 | 2.4.5-2 |
| ubuntu/expat | <2.4.5-2 | 2.4.5-2 |
| ubuntu/expat | <2.4.5-2 | 2.4.5-2 |
| ubuntu/expat | <2.4.5-2 | 2.4.5-2 |
| 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 | <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/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~ |
Remedy
There is no known mitigation other than restricting applications using the expat library from processing untrusted XML content. Please update the affected packages as soon as possible.
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2022-25236 https://nvd.nist.gov/vuln/detail/CVE-2022-25236 https://blog.hartwork.org/posts/expat-2-4-5-released/
- https://bugzilla.redhat.com/show_bug.cgi?id=2056370
- https://access.redhat.com/errata/RHSA-2022:1309
- https://access.redhat.com/errata/RHSA-2022:0824
- https://access.redhat.com/errata/RHSA-2022:0850
- https://access.redhat.com/errata/RHSA-2022:1069
- https://access.redhat.com/errata/RHSA-2022:0818
- https://access.redhat.com/errata/RHSA-2022:0845
- https://access.redhat.com/errata/RHSA-2022:7811
- https://access.redhat.com/errata/RHSA-2022:0951
- https://access.redhat.com/errata/RHSA-2022:0815
- https://access.redhat.com/errata/RHSA-2022:0847
- https://access.redhat.com/errata/RHSA-2022:1068
- https://access.redhat.com/errata/RHSA-2022:0816
- https://access.redhat.com/errata/RHSA-2022:0843
- https://access.redhat.com/errata/RHSA-2022:1070
- https://access.redhat.com/errata/RHSA-2022:0817
- https://access.redhat.com/errata/RHSA-2022:0853
- https://access.redhat.com/errata/RHSA-2022:1012
- https://access.redhat.com/errata/RHSA-2022:7144
- https://access.redhat.com/errata/RHSA-2022:1263
- https://access.redhat.com/errata/RHSA-2022:1053
- https://access.redhat.com/security/cve/cve-2022-25236
- https://github.com/libexpat/libexpat/pull/561
- https://security-tracker.debian.org/tracker/CVE-2022-25236
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-25236
- https://security-tracker.debian.org/tracker/CVE-2022-25235
- https://security-tracker.debian.org/tracker/CVE-2022-25313
- https://security-tracker.debian.org/tracker/CVE-2022-25314
- https://security-tracker.debian.org/tracker/CVE-2022-25315
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1005895
- http://packetstormsecurity.com/files/167238/Zoom-XMPP-Stanza-Smuggling-Remote-Code-Execution.html
- http://www.openwall.com/lists/oss-security/2022/02/19/1
- https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf
- https://lists.debian.org/debian-lts-announce/2022/03/msg00007.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/3UFRBA3UQVIQKXTBUQXDWQOVWNBKLERU/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Y27XO3JMKAOMQZVPS3B4MJGEAHCZF5OM/
- https://security.gentoo.org/glsa/202209-24
- https://security.netapp.com/advisory/ntap-20220303-0008/
- https://www.debian.org/security/2022/dsa-5085
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://launchpad.net/bugs/cve/CVE-2022-25236
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2056371
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2056372
- https://github.com/libexpat/libexpat/commit/a2fe525e660badd64b6c557c2b1ec26ddc07f6e4
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2057429
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2065579
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2065582
- https://access.redhat.com/errata/RHSA-2022:7143
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3UFRBA3UQVIQKXTBUQXDWQOVWNBKLERU/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y27XO3JMKAOMQZVPS3B4MJGEAHCZF5OM/
- https://github.com/libexpat/libexpat/commit/6881a4fc8596307ab9ff2e85e605afa2e413ab71
- https://github.com/libexpat/libexpat/commit/2de077423fb22750ebea599677d523b53cb93b1d
- https://github.com/libexpat/libexpat/pull/577
- https://github.com/libexpat/libexpat/commit/2ba6c76fca21397959145e18c5ef376201209020
- https://github.com/libexpat/libexpat/commit/e0f852db1e3b1e6d34922c68a653c3cc4b85361c
- https://github.com/libexpat/libexpat/commit/5dd52182972a35f2251a07784eda35d3d52d3e07
- https://github.com/libexpat/libexpat/commit/c57bea96b73eee1c6d5e288f0f57efbf5238e49a
- https://github.com/libexpat/libexpat/pull/561/commits/a2fe525e660badd64b6c557c2b1ec26ddc07f6e4 (fix)
- https://github.com/libexpat/libexpat/pull/561/commits/2de077423fb22750ebea599677d523b53cb93b1d (test)
- https://ubuntu.com/security/notices/USN-5288-1
- https://ubuntu.com/security/notices/USN-5455-1
- https://www.cve.org/CVERecord?id=CVE-2022-25236
- https://nvd.nist.gov/vuln/detail/CVE-2022-25236
- https://ubuntu.com/security/CVE-2022-25236
Parent vulnerabilities
(Appears in the following advisories)
- RHSA-2022:1309
- RHSA-2022:0824
- RHSA-2022:0850
- RHSA-2022:1069
- RHSA-2022:0818
- RHSA-2022:0845
- RHSA-2022:7811
- RHSA-2022:0951
- RHSA-2022:0815
- RHSA-2022:0847
- RHSA-2022:1068
- RHSA-2022:0816
- RHSA-2022:0843
- RHSA-2022:1070
- RHSA-2022:0817
- RHSA-2022:0853
- RHSA-2022:1012
- RHSA-2022:7144
- RHSA-2022:1263
- RHSA-2022:1053
- USN-5288-1
- USN-5455-1
Frequently Asked Questions
What is the vulnerability ID of this flaw in Expat?
The vulnerability ID of this flaw in Expat is CVE-2022-25236.
What is the severity level of CVE-2022-25236?
The severity level of CVE-2022-25236 is critical.
What is the affected software of CVE-2022-25236?
The affected software of CVE-2022-25236 includes Expat (libexpat) versions before 2.4.5, Red Hat, Firefox, Thunderbird, mingw-expat, and others.
How can an attacker exploit CVE-2022-25236?
An attacker can exploit CVE-2022-25236 by passing namespace separator characters in the "xmlns[:prefix]" attribute values, causing expat to send malformed tag names to the XML processor.
Where can I find more information about CVE-2022-25236?
You can find more information about CVE-2022-25236 at the following references: http://www.openwall.com/lists/oss-security/2022/02/19/1, https://github.com/libexpat/libexpat/pull/561, and https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2056371
- collector/redhat-cve
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