Malformed requests may cause the server to dereference a NULL pointer. This issue affects Apache HTTP Server 2.4.48 and earlier.

CISCO:20211124 Multiple Vulnerabilities in Apache HTTP Server Affecting Cisco Products: November 2021 | URL:https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-2.4.49-VWL69sWQ | CONFIRM:https://cert-portal.siemens.com/productcert/pdf/ssa-685781.pdf | CONFIRM:https://kc.mcafee.com/corporate/index?page=content&id=SB10379 | URL:https://kc.mcafee.com/corporate/index?page=content&id=SB10379 | CONFIRM:https://security.netapp.com/advisory/ntap-20211008-0004/ | URL:https://security.netapp.com/advisory/ntap-20211008-0004/ | CONFIRM:https://www.tenable.com/security/tns-2021-17 | URL:https://www.tenable.com/security/tns-2021-17 | DEBIAN:DSA-4982 | URL:https://www.debian.org/security/2021/dsa-4982 | FEDORA:FEDORA-2021-dce7e7738e | URL:https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/ | FEDORA:FEDORA-2021-e3f6dd670d | URL:https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R/ | GENTOO:GLSA-202208-20 | URL:https://security.gentoo.org/glsa/202208-20 | MISC:http://httpd.apache.org/security/vulnerabilities_24.html | URL:http://httpd.apache.org/security/vulnerabilities_24.html | MISC:https://www.oracle.com/security-alerts/cpuapr2022.html | URL:https://www.oracle.com/security-alerts/cpuapr2022.html | MISC:https://www.oracle.com/security-alerts/cpujan2022.html | URL:https://www.oracle.com/security-alerts/cpujan2022.html | MLIST:[debian-lts-announce] 20211002 [SECURITY] [DLA 2776-1] apache2 security update | URL:https://lists.debian.org/debian-lts-announce/2021/10/msg00001.html | MLIST:[httpd-users] 20210923 Re: [users@httpd] 2.4.49 security fixes: more info | URL:https://lists.apache.org/thread.html/r82c077663f9759c7df5a6656f925b3ee4f55fcd33c889ba7cd687029@%3Cusers.httpd.apache.org%3E | MLIST:[httpd-users] 20210923 Re: [users@httpd] Re: [External] : [users@httpd] 2.4.49 security fixes: more info | URL:https://lists.apache.org/thread.html/r61fdbfc26ab170f4e6492ef3bd5197c20b862ce156e9d5a54d4b899c@%3Cusers.httpd.apache.org%3E | MLIST:[httpd-users] 20210923 [users@httpd] 2.4.49 security fixes: more info | URL:https://lists.apache.org/thread.html/r82838efc5fa6fc4c73986399c9b71573589f78b31846aff5bd9b1697@%3Cusers.httpd.apache.org%3E | MLIST:[httpd-users] 20210923 [users@httpd] Re: [External] : [users@httpd] 2.4.49 security fixes: more info | URL:https://lists.apache.org/thread.html/r3925e167d5eb1c75def3750c155d753064e1d34a143028bb32910432@%3Cusers.httpd.apache.org%3E