CVE-2024-8176: Libexpat: expat: improper restriction of xml entity expansion depth in libexpat
Description
A stack overflow vulnerability exists in the libexpat library due to the way it handles recursive entity expansion in XML documents. When parsing an XML document with deeply nested entity references, libexpat can be forced to recurse indefinitely, exhausting the stack space and causing a crash. This issue could lead to denial of service (DoS) or, in some cases, exploitable memory corruption, depending on the environment and library usage.
Classification
CVE ID: CVE-2024-8176
Problem Types
Uncontrolled RecursionAffected Products
Vendor: Red Hat, Red Hat, Red Hat, Red Hat, Red Hat, Red Hat, Red Hat, Red Hat, Red Hat, Red Hat, Red Hat, Red Hat, Red Hat, Red Hat, Red Hat, Red Hat, Red Hat, Red Hat
Product: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 9, Red Hat JBoss Core Services, Red Hat OpenShift Container Platform 4
Exploit Prediction Scoring System (EPSS)
EPSS Score: 0.74% (probability of being exploited)
EPSS Percentile: 70.61% (scored less or equal to compared to others)
EPSS Date: 2025-04-12 (when was this score calculated)
References
https://nvd.nist.gov/vuln/detail/CVE-2024-8176https://access.redhat.com/security/cve/CVE-2024-8176
https://bugzilla.redhat.com/show_bug.cgi?id=2310137
https://github.com/libexpat/libexpat/issues/893