Vulnerability Description
xmltok_impl.c in Expat (aka libexpat) before 2.4.5 lacks certain validation of encoding, such as checks for whether a UTF-8 character is valid in a certain context.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Libexpat Project | Libexpat | < 2.4.5 |
| Debian | Debian Linux | 10.0 |
| Fedoraproject | Fedora | 34 |
| Oracle | Http Server | 12.2.1.3.0 |
| Oracle | Zfs Storage Appliance Kit | 8.8 |
| Siemens | Sinema Remote Connect Server | < 3.1 |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2022/02/19/1Mailing ListThird Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdfThird Party Advisory
- https://github.com/libexpat/libexpat/pull/562PatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/03/msg00007.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202209-24Third Party Advisory
- https://security.netapp.com/advisory/ntap-20220303-0008/Third Party Advisory
- https://www.debian.org/security/2022/dsa-5085Third Party Advisory
- https://www.oracle.com/security-alerts/cpuapr2022.htmlPatchThird Party Advisory
- http://www.openwall.com/lists/oss-security/2022/02/19/1Mailing ListThird Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdfThird Party Advisory
- https://github.com/libexpat/libexpat/pull/562PatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/03/msg00007.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
FAQ
What is CVE-2022-25235?
CVE-2022-25235 is a vulnerability with a CVSS score of 9.8 (CRITICAL). xmltok_impl.c in Expat (aka libexpat) before 2.4.5 lacks certain validation of encoding, such as checks for whether a UTF-8 character is valid in a certain context.
How severe is CVE-2022-25235?
CVE-2022-25235 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2022-25235?
Check the references section above for vendor advisories and patch information. Affected products include: Libexpat Project Libexpat, Debian Debian Linux, Fedoraproject Fedora, Oracle Http Server, Oracle Zfs Storage Appliance Kit.