CVE-2022-25235 | BDVDB-2026-170201 Detail
SiemensSIMATIC S7-1500 CPU 1518-4 PN/DP MFP
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.
Impact#
Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: network.
Weaknesses#
- CWE-116 Improper Encoding or Escaping of Output
References#
- https://github.com/libexpat/libexpat/pull/562
- http://www.openwall.com/lists/oss-security/2022/02/19/1
- https://www.debian.org/security/2022/dsa-5085
- 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://lists.debian.org/debian-lts-announce/2022/03/msg00007.html
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://security.netapp.com/advisory/ntap-20220303-0008/
- https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf
- https://security.gentoo.org/glsa/202209-24
- https://cert-portal.siemens.com/productcert/html/ssa-484086.html
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.