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{"cveTags": [], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "Existe una vulnerabilidad de desbordamiento de pila en la librer\u00eda libexpat debido a la forma en que gestiona la expansi\u00f3n recursiva de entidades en documentos XML. Al analizar un documento XML con referencias a entidades profundamente anidadas, libexpat puede verse forzado a recurrir indefinidamente, agotando el espacio de pila y provocando un bloqueo. Este problema podr\u00eda provocar una denegaci\u00f3n de servicio (DoS) o, en algunos casos, una corrupci\u00f3n de memoria explotable, seg\u00fan el entorno y el uso de la librer\u00eda."}], "id": "CVE-2024-8176", "lastModified": "2025-04-15T17:15:37.603", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "secalert@redhat.com", "type": "Secondary"}]}, "published": "2025-03-14T09:15:14.157", "references": [{"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2025:3531"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2025:3734"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/errata/RHSA-2025:3913"}, {"source": "secalert@redhat.com", "url": "https://access.redhat.com/security/cve/CVE-2024-8176"}, {"source": "secalert@redhat.com", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2310137"}, {"source": "secalert@redhat.com", "url": "https://github.com/libexpat/libexpat/issues/893"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "http://www.openwall.com/lists/oss-security/2025/03/15/1"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://blog.hartwork.org/posts/expat-2-7-0-released/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://bugzilla.suse.com/show_bug.cgi?id=1239618"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://github.com/libexpat/libexpat/blob/R_2_7_0/expat/Changes#L40-L52"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://gitlab.alpinelinux.org/alpine/aports/-/commit/d068c3ff36fc6f4789988a09c69b434db757db53"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://security-tracker.debian.org/tracker/CVE-2024-8176"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://security.netapp.com/advisory/ntap-20250328-0009/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://ubuntu.com/security/CVE-2024-8176"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-674"}], "source": "secalert@redhat.com", "type": "Secondary"}]}

{"acknowledgement": "This issue was discovered by Jann Horn (Google Project Zero), Sandipan Roy (Red Hat), Sebastian Pipping (libexpat), and Tomas Korbar (Red Hat).", "affected_release": [{"advisory": "RHSA-2025:3913", "cpe": "cpe:/o:redhat:enterprise_linux:8", "package": "expat-0:2.2.5-17.el8_10", "product_name": "Red Hat Enterprise Linux 8", "release_date": "2025-04-15T00:00:00Z"}, {"advisory": "RHSA-2025:3531", "cpe": "cpe:/a:redhat:enterprise_linux:9", "package": "expat-0:2.5.0-3.el9_5.3", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2025-04-02T00:00:00Z"}, {"advisory": "RHSA-2025:3531", "cpe": "cpe:/o:redhat:enterprise_linux:9", "package": "expat-0:2.5.0-3.el9_5.3", "product_name": "Red Hat Enterprise Linux 9", "release_date": "2025-04-02T00:00:00Z"}, {"advisory": "RHSA-2025:3734", "cpe": "cpe:/a:redhat:devworkspace:0.33::el9", "package": "registry.redhat.io/devworkspace/devworkspace-project-clone-rhel9:sha256:b41c498da32fde3fa636594ef93d2206ca1a3bc306e401eaae035dc18d30654a", "product_name": "DevWorkspace Operator 0.33", "release_date": "2025-04-09T00:00:00Z"}], "bugzilla": {"description": "libexpat: expat: Improper Restriction of XML Entity Expansion Depth in libexpat", "id": "2310137", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2310137"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "verified"}, "cwe": "CWE-674", "details": ["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.", "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."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2024-8176", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "compat-expat1", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "expat", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "expat", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "lua-expat", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "mingw-expat", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Will not fix", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "xmlrpc-c", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Will not fix", "package_name": "firefox", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Will not fix", "package_name": "firefox:flatpak/firefox", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Will not fix", "package_name": "thunderbird", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Will not fix", "package_name": "thunderbird:flatpak/thunderbird", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:jboss_core_services:1", "fix_state": "Affected", "package_name": "expat", "product_name": "Red Hat JBoss Core Services"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Affected", "package_name": "rhcos", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2025-03-13T13:51:54Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-8176\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-8176\nhttps://github.com/libexpat/libexpat/issues/893"], "statement": "All supported Red Hat offerings are built with the compilation flag (-fstack-clash-protection) which reduces the impact to Moderate. This build configuration blocks the possibility of an attacker gaining arbitrary code execution even if a stack-clash vulnerability, like this one, could be exploited.", "threat_severity": "Moderate"}