Apache HTTP Server is vulnerable to denial of service(DoS) attacks. This occurs in httpd’s handling of the LimitRequestFields directive in mod_http2, affecting servers with HTTP/2 enabled. An attacker could send crafted CONTINUATION frames in an HTTP/2 requests with headers larger than the server’s available memory which leads the application to crash.
packetstormsecurity.com/files/140023/Apache-HTTPD-Web-Server-2.4.23-Memory-Exhaustion.html
rhn.redhat.com/errata/RHSA-2017-1415.html
www.securityfocus.com/bid/94650
www.securitytracker.com/id/1037388
access.redhat.com/documentation/en-US/Red_Hat_Software_Collections/2/html/2.4_Release_Notes/chap-RHSCL.html#sect-RHSCL-Changes-httpd
access.redhat.com/errata/RHSA-2017:1161
access.redhat.com/errata/RHSA-2017:1413
access.redhat.com/errata/RHSA-2017:1414
access.redhat.com/security/updates/classification/#moderate
bugzilla.redhat.com/show_bug.cgi?id=1329639
bugzilla.redhat.com/show_bug.cgi?id=1335616
bugzilla.redhat.com/show_bug.cgi?id=1414037
bugzilla.redhat.com/show_bug.cgi?id=1432249
bugzilla.redhat.com/show_bug.cgi?id=1433474
github.com/apache/httpd/commit/29c63b786ae028d82405421585e91283c8fa0da3
h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03725en_us
lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba@%3Ccvs.httpd.apache.org%3E
lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830@%3Ccvs.httpd.apache.org%3E
lists.apache.org/thread.html/r04e89e873d54116a0635ef2f7061c15acc5ed27ef7500997beb65d6f@%3Ccvs.httpd.apache.org%3E
lists.apache.org/thread.html/r476d175be0aaf4a17680ef98c5153b4d336eaef76fb2224cc94c463a@%3Ccvs.httpd.apache.org%3E
lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d@%3Ccvs.httpd.apache.org%3E
lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920@%3Ccvs.httpd.apache.org%3E
lists.apache.org/thread.html/rb14daf9cc4e28d18cdc15d6a6ca74e565672fabf7ad89541071d008b@%3Ccvs.httpd.apache.org%3E
lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a@%3Ccvs.httpd.apache.org%3E
lists.apache.org/thread.html/rcc44594d4d6579b90deccd4536b5d31f099ef563df39b094be286b9e@%3Ccvs.httpd.apache.org%3E
lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f@%3Ccvs.httpd.apache.org%3E
lists.apache.org/thread.html/rd336919f655b7ff309385e34a143e41c503e133da80414485b3abcc9@%3Ccvs.httpd.apache.org%3E
lists.apache.org/thread.html/re1e3a24664d35bcd0a0e793e0b5fc6ca6c107f99a1b2c545c5d4b467@%3Ccvs.httpd.apache.org%3E
lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234@%3Ccvs.httpd.apache.org%3E
lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9@%3Ccvs.httpd.apache.org%3E
security.gentoo.org/glsa/201701-36
security.netapp.com/advisory/ntap-20180423-0001/
support.apple.com/HT208221
www.exploit-db.com/exploits/40909/
www.tenable.com/security/tns-2017-04