defineAttribute in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.
Fix
Patch, vendor advisory and mitigation references on NVD 4
- https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf Patch, Third Party Advisory
- https://github.com/libexpat/libexpat/pull/539 Patch, Third Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf Patch, Third Party Advisory
- https://github.com/libexpat/libexpat/pull/539 Patch, Third Party Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 9.8 · libexpat_project, tenable, debianNVD modified 2026-10-14 16:17
Affected (CPE criteria) 5
cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*cpe:2.3:a:tenable:nessus:*:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*cpe:2.3:a:siemens:sinema_remote_connect_server:*:*:*:*:*:*:*:*
References 14
- http://www.openwall.com/lists/oss-security/2022/01/17/3 Mailing List, Third Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf Patch, Third Party Advisory
- https://github.com/libexpat/libexpat/pull/539 Patch, Third Party Advisory
- https://security.gentoo.org/glsa/202209-24 Third Party Advisory
- https://www.debian.org/security/2022/dsa-5073 Third Party Advisory
- https://www.tenable.com/security/tns-2022-05 Third Party Advisory
- http://www.openwall.com/lists/oss-security/2022/01/17/3 Mailing List, Third Party Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf Patch, Third Party Advisory
- https://github.com/libexpat/libexpat/pull/539 Patch, Third Party Advisory
- https://security.gentoo.org/glsa/202209-24 Third Party Advisory
- https://www.debian.org/security/2022/dsa-5073 Third Party Advisory
- https://www.tenable.com/security/tns-2022-05 Third Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html
- https://cert-portal.siemens.com/productcert/html/ssa-484086.html