{"id":"CVE-2016-0736","details":"In Apache HTTP Server versions 2.4.0 to 2.4.23, mod_session_crypto was encrypting its data/cookie using the configured ciphers with possibly either CBC or ECB modes of operation (AES256-CBC by default), hence no selectable or builtin authenticated encryption. This made it vulnerable to padding oracle attacks, particularly with CBC.","modified":"2026-07-08T12:36:07.780027Z","published":"2017-07-27T21:29:00.177Z","related":["SUSE-SU-2017:0797-1","SUSE-SU-2017:0801-1"],"references":[{"type":"WEB","url":"https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/r04e89e873d54116a0635ef2f7061c15acc5ed27ef7500997beb65d6f%40%3Ccvs.httpd.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d%40%3Ccvs.httpd.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/rb14daf9cc4e28d18cdc15d6a6ca74e565672fabf7ad89541071d008b%40%3Ccvs.httpd.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/rcc44594d4d6579b90deccd4536b5d31f099ef563df39b094be286b9e%40%3Ccvs.httpd.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/re1e3a24664d35bcd0a0e793e0b5fc6ca6c107f99a1b2c545c5d4b467%40%3Ccvs.httpd.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234%40%3Ccvs.httpd.apache.org%3E"},{"type":"WEB","url":"https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E"},{"type":"WEB","url":"https://support.apple.com/HT208221"},{"type":"WEB","url":"https://www.exploit-db.com/exploits/40961/"},{"type":"WEB","url":"https://www.tenable.com/security/tns-2017-04"},{"type":"ADVISORY","url":"http://rhn.redhat.com/errata/RHSA-2017-1415.html"},{"type":"ADVISORY","url":"http://www.debian.org/security/2017/dsa-3796"},{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/95078"},{"type":"ADVISORY","url":"http://www.securitytracker.com/id/1037508"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2017:0906"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2017:1161"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2017:1413"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2017:1414"},{"type":"ADVISORY","url":"https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03725en_us"},{"type":"ADVISORY","url":"https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2016-0736"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/201701-36"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20180423-0001/"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/apache/httpd","events":[{"introduced":"da5873e80d6eee7a0838793bf68f1d0254745fbb"},{"last_affected":"ef07cb031c6f8f7ac483c26fc858aad68c365fd9"}],"database_specific":{"extracted_events":[{"introduced":"2.4.0"},{"last_affected":"2.4.0"},{"introduced":"2.4.1"},{"last_affected":"2.4.1"},{"introduced":"2.4.2"},{"last_affected":"2.4.2"},{"introduced":"2.4.3"},{"last_affected":"2.4.3"},{"introduced":"2.4.6"},{"last_affected":"2.4.6"},{"introduced":"2.4.7"},{"last_affected":"2.4.7"},{"introduced":"2.4.8"},{"last_affected":"2.4.8"},{"introduced":"2.4.9"},{"last_affected":"2.4.9"},{"introduced":"2.4.10"},{"last_affected":"2.4.10"},{"introduced":"2.4.12"},{"last_affected":"2.4.12"},{"introduced":"2.4.14"},{"last_affected":"2.4.14"},{"introduced":"2.4.16"},{"last_affected":"2.4.16"},{"introduced":"2.4.19"},{"last_affected":"2.4.19"},{"introduced":"2.4.20"},{"last_affected":"2.4.20"},{"introduced":"2.4.21"},{"last_affected":"2.4.21"},{"introduced":"2.4.22"},{"last_affected":"2.4.22"},{"introduced":"2.4.23"},{"last_affected":"2.4.23"}],"source":"CPE_STRING","cpe":["cpe:2.3:a:apache:http_server:2.4.0:*:*:*:*:*:*:*","cpe:2.3:a:apache:http_server:2.4.1:*:*:*:*:*:*:*","cpe:2.3:a:apache:http_server:2.4.2:*:*:*:*:*:*:*","cpe:2.3:a:apache:http_server:2.4.3:*:*:*:*:*:*:*","cpe:2.3:a:apache:http_server:2.4.6:*:*:*:*:*:*:*","cpe:2.3:a:apache:http_server:2.4.7:*:*:*:*:*:*:*","cpe:2.3:a:apache:http_server:2.4.8:*:*:*:*:*:*:*","cpe:2.3:a:apache:http_server:2.4.9:*:*:*:*:*:*:*","cpe:2.3:a:apache:http_server:2.4.10:*:*:*:*:*:*:*","cpe:2.3:a:apache:http_server:2.4.12:*:*:*:*:*:*:*","cpe:2.3:a:apache:http_server:2.4.14:*:*:*:*:*:*:*","cpe:2.3:a:apache:http_server:2.4.16:*:*:*:*:*:*:*","cpe:2.3:a:apache:http_server:2.4.19:*:*:*:*:*:*:*","cpe:2.3:a:apache:http_server:2.4.20:*:*:*:*:*:*:*","cpe:2.3:a:apache:http_server:2.4.21:*:*:*:*:*:*:*","cpe:2.3:a:ap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