{"api_version":"1","generated_at":"2026-07-23T10:16:46+00:00","cve":"CVE-2017-9798","urls":{"html":"https://cve.report/CVE-2017-9798","api":"https://cve.report/api/cve/CVE-2017-9798.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2017-9798","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-9798"},"summary":{"title":"CVE-2017-9798","description":"Apache httpd allows remote attackers to read secret data from process memory if the Limit directive can be set in a user's .htaccess file, or if httpd.conf has certain misconfigurations, aka Optionsbleed. This affects the Apache HTTP Server through 2.2.34 and 2.4.x through 2.4.27. The attacker sends an unauthenticated OPTIONS HTTP request when attempting to read secret data. This is a use-after-free issue and thus secret data is not always sent, and the specific data depends on many factors including configuration. Exploitation with .htaccess can be blocked with a patch to the ap_limit_section function in server/core.c.","state":"PUBLIC","assigner":"security@apache.org","published_at":"2017-09-18 15:29:00","updated_at":"2023-11-07 02:50:00"},"problem_types":["CWE-416"],"metrics":[],"references":[{"url":"https://svn.apache.org/viewvc/httpd/httpd/branches/2.4.x/server/core.c?r1=1805223&r2=1807754&pathrev=1807754&view=patch","name":"https://svn.apache.org/viewvc/httpd/httpd/branches/2.4.x/server/core.c?r1=1805223&r2=1807754&pathrev=1807754&view=patch","refsource":"MISC","tags":["Vendor Advisory"],"title":"","mime":"text/x-diff","httpstatus":"200","archivestatus":"200"},{"url":"https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E","name":"[httpd-cvs] 20210330 svn commit: r1073139 [1/13] - in /websites/staging/httpd/trunk/content: ./ security/json/","refsource":"","tags":[],"title":"Pony 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Linux Security Update for mod_ssl (VZLSA-2017:2972)"},{"cve":"CVE-2017-9798","qid":"500012","title":"Alpine Linux Security Update for apache2"},{"cve":"CVE-2017-9798","qid":"503703","title":"Alpine Linux Security Update for apache2"}]},"source_records":{"cve_program":{"CVE_data_meta":{"ASSIGNER":"security@apache.org","ID":"CVE-2017-9798","STATE":"PUBLIC"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"Apache HTTP Server","version":{"version_data":[{"version_value":"Apache HTTP Server through 2.2.34 and 2.4.x through 2.4.27"}]}}]},"vendor_name":"Apache Software Foundation"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"Apache httpd allows remote attackers to read secret data from process memory if the Limit directive can be set in a user's .htaccess file, or if httpd.conf has certain misconfigurations, aka Optionsbleed. This affects the Apache HTTP Server through 2.2.34 and 2.4.x through 2.4.27. The attacker sends an unauthenticated OPTIONS HTTP request when attempting to read secret data. This is a use-after-free issue and thus secret data is not always sent, and the specific data depends on many factors including configuration. Exploitation with .htaccess can be blocked with a patch to the ap_limit_section function in server/core.c."}]},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"use-after-free"}]}]},"references":{"reference_data":[{"name":"RHSA-2017:3113","refsource":"REDHAT","url":"https://access.redhat.com/errata/RHSA-2017:3113"},{"name":"100872","refsource":"BID","url":"http://www.securityfocus.com/bid/100872"},{"name":"http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html","refsource":"CONFIRM","url":"http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.html"},{"name":"http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html","refsource":"CONFIRM","url":"http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html"},{"name":"https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html","refsource":"CONFIRM","url":"https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html"},{"name":"RHSA-2017:2882","refsource":"REDHAT","url":"https://access.redhat.com/errata/RHSA-2017:2882"},{"name":"RHSA-2017:2972","refsource":"REDHAT","url":"https://access.redhat.com/errata/RHSA-2017:2972"},{"name":"https://blog.fuzzing-project.org/uploads/apache-2.2-optionsbleed-backport.patch","refsource":"MISC","url":"https://blog.fuzzing-project.org/uploads/apache-2.2-optionsbleed-backport.patch"},{"name":"https://support.apple.com/HT208331","refsource":"CONFIRM","url":"https://support.apple.com/HT208331"},{"name":"1039387","refsource":"SECTRACK","url":"http://www.securitytracker.com/id/1039387"},{"name":"https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03909en_us","refsource":"CONFIRM","url":"https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03909en_us"},{"name":"RHSA-2017:3475","refsource":"REDHAT","url":"https://access.redhat.com/errata/RHSA-2017:3475"},{"name":"https://github.com/hannob/optionsbleed","refsource":"MISC","url":"https://github.com/hannob/optionsbleed"},{"name":"https://svn.apache.org/viewvc/httpd/httpd/branches/2.4.x/server/core.c?r1=1805223&r2=1807754&pathrev=1807754&view=patch","refsource":"MISC","url":"https://svn.apache.org/viewvc/httpd/httpd/branches/2.4.x/server/core.c?r1=1805223&r2=1807754&pathrev=1807754&view=patch"},{"name":"RHSA-2017:3240","refsource":"REDHAT","url":"https://access.redhat.com/errata/RHSA-2017:3240"},{"name":"RHSA-2017:3195","refsource":"REDHAT","url":"https://access.redhat.com/errata/RHSA-2017:3195"},{"name":"RHSA-2017:3018","refsource":"REDHAT","url":"https://access.redhat.com/errata/RHSA-2017:3018"},{"name":"http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html","refsource":"CONFIRM","url":"http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html"},{"name":"RHSA-2017:3239","refsource":"REDHAT","url":"https://access.redhat.com/errata/RHSA-2017:3239"},{"name":"RHSA-2017:3476","refsource":"REDHAT","url":"https://access.redhat.com/errata/RHSA-2017:3476"},{"name":"105598","refsource":"BID","url":"http://www.securityfocus.com/bid/105598"},{"name":"https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2017-9798","refsource":"CONFIRM","url":"https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2017-9798"},{"name":"http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html","refsource":"CONFIRM","url":"http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html"},{"name":"RHSA-2017:3114","refsource":"REDHAT","url":"https://access.redhat.com/errata/RHSA-2017:3114"},{"name":"RHSA-2017:3477","refsource":"REDHAT","url":"https://access.redhat.com/errata/RHSA-2017:3477"},{"name":"http://openwall.com/lists/oss-security/2017/09/18/2","refsource":"MISC","url":"http://openwall.com/lists/oss-security/2017/09/18/2"},{"name":"https://security.netapp.com/advisory/ntap-20180601-0003/","refsource":"CONFIRM","url":"https://security.netapp.com/advisory/ntap-20180601-0003/"},{"name":"RHSA-2017:3194","refsource":"REDHAT","url":"https://access.redhat.com/errata/RHSA-2017:3194"},{"name":"https://security-tracker.debian.org/tracker/CVE-2017-9798","refsource":"MISC","url":"https://security-tracker.debian.org/tracker/CVE-2017-9798"},{"name":"RHSA-2017:3193","refsource":"REDHAT","url":"https://access.redhat.com/errata/RHSA-2017:3193"},{"name":"DSA-3980","refsource":"DEBIAN","url":"http://www.debian.org/security/2017/dsa-3980"},{"name":"https://blog.fuzzing-project.org/60-Optionsbleed-HTTP-OPTIONS-method-can-leak-Apaches-server-memory.html","refsource":"MISC","url":"https://blog.fuzzing-project.org/60-Optionsbleed-HTTP-OPTIONS-method-can-leak-Apaches-server-memory.html"},{"name":"42745","refsource":"EXPLOIT-DB","url":"https://www.exploit-db.com/exploits/42745/"},{"name":"GLSA-201710-32","refsource":"GENTOO","url":"https://security.gentoo.org/glsa/201710-32"},{"url":"https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html","refsource":"MISC","name":"https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.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httpd allows remote attackers to read secret data from process memory if the Limit directive can be set in a user's .htaccess file, or if httpd.conf has certain misconfigurations, aka Optionsbleed. This affects the Apache HTTP Server through 2.2.34 and 2.4.x through 2.4.27. The attacker sends an unauthenticated OPTIONS HTTP request when attempting to read secret data. This is a use-after-free issue and thus secret data is not always sent, and the specific data depends on many factors including configuration. Exploitation with .htaccess can be blocked with a patch to the ap_limit_section function in server/core.c.","Type":"Description","Title":null},{"CveYear":"2017","CveId":"9798","Ordinal":"2","NoteData":"2017-09-18","Type":"Other","Title":"Published"},{"CveYear":"2017","CveId":"9798","Ordinal":"3","NoteData":"2021-06-06","Type":"Other","Title":"Modified"}]}}}