CVE-2021-30641

Apache HTTP Server versions 2.4.39 to 2.4.46 Unexpected matching behavior with 'MergeSlashes OFF'

Credits

Discovered by Christoph Anton Mitterer

References

httpd.apache.org/security/vulnerabilities_24.html

https://lists.apache.org/thread.html/re026d3da9d7824bd93b9f871c0fdda978d960c7e62d8c43cba8d0bf3%40%3Ccvs.httpd.apache.org%3E

https://lists.apache.org/thread.html/r2b4773944d83d2799de9fbaeee7fe0f3fd72669467787e02f434cb10%40%3Cannounce.httpd.apache.org%3E

https://lists.apache.org/thread.html/r7f2b70b621651548f4b6f027552f1dd91705d7111bb5d15cda0a68dd%40%3Cdev.httpd.apache.org%3E

http://www.openwall.com/lists/oss-security/2021/06/10/8

https://lists.debian.org/debian-lts-announce/2021/07/msg00006.html

https://www.debian.org/security/2021/dsa-4937

https://security.gentoo.org/glsa/202107-38

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R/

https://www.oracle.com/security-alerts/cpuoct2021.html

https://security.netapp.com/advisory/ntap-20210702-0001/