CVE-2022-25235

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 breakdown

Affected products

• Debian / debian_linux10.0 – 10.0
• Debian / debian_linux11.0 – 11.0
• fedoraproject / fedora35 – 35
• fedoraproject / fedora34 – 34
• libexpat project / libexpat2.4.5
• oracle / http_server12.2.1.3.0 – 12.2.1.3.0
• oracle / http_server12.2.1.4.0 – 12.2.1.4.0
• oracle / zfs_storage_appliance_kit8.8 – 8.8
• Siemens / SINEMA Remote Connect Server3.1

References

• PATCHhttps://github.com/libexpat/libexpat/pull/562
• MAILING_LISThttp://www.openwall.com/lists/oss-security/2022/02/19/1
• VENDOR_ADVISORYhttps://www.debian.org/security/2022/dsa-5085
• MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3UFRBA3UQVIQKXTBUQXDWQOVWNBKLERU/
• MAILING_LISThttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y27XO3JMKAOMQZVPS3B4MJGEAHCZF5OM/
• MAILING_LISThttps://lists.debian.org/debian-lts-announce/2022/03/msg00007.html
• VENDOR_ADVISORYhttps://www.oracle.com/security-alerts/cpuapr2022.html
• MISChttps://security.netapp.com/advisory/ntap-20220303-0008/
• MISChttps://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf
• MISChttps://security.gentoo.org/glsa/202209-24