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expat: buffer over-read and crash in big2_toUtf8() on XML with malformed UTF-8 sequences

🗓️ 07 Dec 2009 18:56:00Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 6 Views

Expat 2.0.1: big2_toUtf8 over-read on malformed UTF-8 causes denial of service crash.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux3i386expat0:1.95.5-6.2expat-0:1.95.5-6.2.i386.rpm
Red Hat Enterprise Linux3ia64expat0:1.95.5-6.2expat-0:1.95.5-6.2.ia64.rpm
Red Hat Enterprise Linux3ppcexpat0:1.95.5-6.2expat-0:1.95.5-6.2.ppc.rpm
Red Hat Enterprise Linux3ppc64expat0:1.95.5-6.2expat-0:1.95.5-6.2.ppc64.rpm
Red Hat Enterprise Linux3s390expat0:1.95.5-6.2expat-0:1.95.5-6.2.s390.rpm
Red Hat Enterprise Linux3s390xexpat0:1.95.5-6.2expat-0:1.95.5-6.2.s390x.rpm
Red Hat Enterprise Linux3x86_64expat0:1.95.5-6.2expat-0:1.95.5-6.2.x86_64.rpm
Red Hat Enterprise Linux4i386expat0:1.95.7-4.el4_8.2expat-0:1.95.7-4.el4_8.2.i386.rpm
Red Hat Enterprise Linux4ia64expat0:1.95.7-4.el4_8.2expat-0:1.95.7-4.el4_8.2.ia64.rpm
Red Hat Enterprise Linux4ppcexpat0:1.95.7-4.el4_8.2expat-0:1.95.7-4.el4_8.2.ppc.rpm
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25 Jun 2026 10:36Current
6.9Medium risk
Vulners AI Score6.9
CVSS 25
EPSS0.24313
6