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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*", "matchCriteriaId": "C552FA45-1E0F-4F3A-BB99-8E4604C82820", "versionEndExcluding": "2.4.64", "versionStartIncluding": "2.4.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "HTTP response splitting in the core of Apache HTTP Server allows an attacker who can manipulate the Content-Type response headers of applications hosted or proxied by the server can split the HTTP response.\n\nThis vulnerability was described as CVE-2023-38709 but the patch included in Apache HTTP Server 2.4.59 did not address the issue.\n\nUsers are recommended to upgrade to version 2.4.64, which fixes this issue."}, {"lang": "es", "value": "La divisi\u00f3n de la respuesta HTTP en el n\u00facleo de Apache HTTP Server permite que un atacante que manipule los encabezados de respuesta Content-Type de las aplicaciones alojadas o proxyizadas por el servidor pueda dividir la respuesta HTTP. Esta vulnerabilidad se describi\u00f3 como CVE-2023-38709, pero el parche incluido en Apache HTTP Server 2.4.59 no solucion\u00f3 el problema. Se recomienda a los usuarios actualizar a la versi\u00f3n 2.4.64, que corrige este problema."}], "id": "CVE-2024-42516", "lastModified": "2025-07-29T15:16:31.397", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2025-07-10T17:15:45.343", "references": [{"source": "security@apache.org", "tags": ["Vendor Advisory"], "url": "https://httpd.apache.org/security/vulnerabilities_24.html"}], "sourceIdentifier": "security@apache.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "security@apache.org", "type": "Secondary"}]}

{"bugzilla": {"description": "httpd: incomplete fix for CVE-2023-38709", "id": "2374549", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2374549"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.8", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N", "status": "draft"}, "cwe": "CWE-20->CWE-113", "details": ["HTTP response splitting in the core of Apache HTTP Server allows an attacker who can manipulate the Content-Type response headers of applications hosted or proxied by the server can split the HTTP response.\nThis vulnerability was described as CVE-2023-38709 but the patch included in Apache HTTP Server 2.4.59 did not address the issue.\nUsers are recommended to upgrade to version 2.4.64, which fixes this issue.", "A flaw was found in httpd. The response headers are not sanitized before an HTTP response is sent when a malicious backend can insert a Content-Type, Content-Encoding, or some other headers. These issues lead to HTTP response splitting. This CVE provides a \"complete\" fix for CVE-2023-38709."], "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-2024-42516", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "httpd", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "httpd", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Out of support scope", "package_name": "httpd", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "httpd:2.4/httpd", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "httpd", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:jboss_core_services:1", "fix_state": "Fix deferred", "package_name": "httpd", "product_name": "Red Hat JBoss Core Services"}, {"cpe": "cpe:/a:redhat:jboss_core_services:1", "fix_state": "Fix deferred", "package_name": "jbcs-httpd24-httpd", "product_name": "Red Hat JBoss Core Services"}], "public_date": "2025-07-14T07:13:28Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2024-42516\nhttps://nvd.nist.gov/vuln/detail/CVE-2024-42516"], "statement": "This flaw is only exploitable by a malicious backend or a malicious application, but may also affect forward proxy configurations.\nThis issue is classified as a Moderate vulnerability because successful exploitation requires a highly specific and constrained setup. Namely, the attacker must already have the ability to influence backend responses\u2014such as injecting malicious headers like Content-Type or Content-Encoding\u2014which typically implies a compromised or poorly controlled upstream service. In properly configured systems, frontend servers like Apache sanitize or strictly validate backend output, limiting exposure. Furthermore, HTTP response splitting does not inherently lead to remote code execution or privilege escalation on the server itself; instead, its effects are typically confined to manipulating client-side behavior such as caching or redirection.", "threat_severity": "Moderate"}