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expat: internal entity expansion

🗓️ 15 Nov 2022 11:58:10Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 3 Views

Expat before 2.4.0 expands internal entities unless SetEntityDeclHandler is used, enabling denial of service and file reads.

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Refs
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Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9aarch64expat0:2.4.9-1.el9_1expat-0:2.4.9-1.el9_1.aarch64.rpm
Red Hat Enterprise Linux9ppc64leexpat0:2.4.9-1.el9_1expat-0:2.4.9-1.el9_1.ppc64le.rpm
Red Hat Enterprise Linux9s390xexpat0:2.4.9-1.el9_1expat-0:2.4.9-1.el9_1.s390x.rpm
Red Hat Enterprise Linux9x86_64expat0:2.4.9-1.el9_1expat-0:2.4.9-1.el9_1.x86_64.rpm
Red Hat Enterprise Linux9anyexpat0:2.4.9-1.el9_1.i686expat-0:2.4.9-1.el9_1.i686.noarch.rpm
Red Hat Enterprise Linux9aarch64expat-debuginfo0:2.4.9-1.el9_1expat-debuginfo-0:2.4.9-1.el9_1.aarch64.rpm
Red Hat Enterprise Linux9ppc64leexpat-debuginfo0:2.4.9-1.el9_1expat-debuginfo-0:2.4.9-1.el9_1.ppc64le.rpm
Red Hat Enterprise Linux9s390xexpat-debuginfo0:2.4.9-1.el9_1expat-debuginfo-0:2.4.9-1.el9_1.s390x.rpm
Red Hat Enterprise Linux9x86_64expat-debuginfo0:2.4.9-1.el9_1expat-debuginfo-0:2.4.9-1.el9_1.x86_64.rpm
Red Hat Enterprise Linux9anyexpat-debuginfo0:2.4.9-1.el9_1.i686expat-debuginfo-0:2.4.9-1.el9_1.i686.noarch.rpm
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25 Jun 2026 10:31Current
7High risk
Vulners AI Score7
CVSS 26.8
EPSS0.19433
expat vulnerabilityinternal entity expansiondenial of serviceintranet requestsfile reads
3