PRIOn knowledge basePRION:CVE-2021-44224Design/Logic Flaw
A crafted URI sent to httpd configured as a forward proxy (ProxyRequests on) can cause a crash (NULL pointer dereference) or, for configurations mixing forward and reverse proxy declarations, can allow for requests to be directed to a declared Unix Domain Socket endpoint (Server Side Request Forgery). This issue affects Apache HTTP Server 2.4.7 up to 2.4.51 (included).
References
httpd.apache.org/security/vulnerabilities_24.html
seclists.org/fulldisclosure/2022/May/33
seclists.org/fulldisclosure/2022/May/35
seclists.org/fulldisclosure/2022/May/38
www.openwall.com/lists/oss-security/2021/12/20/3
lists.fedoraproject.org/archives/list/[email protected]/message/BFSWOH4X77CV7AH7C4RMHUBDWKQDL4YH/
lists.fedoraproject.org/archives/list/[email protected]/message/RGWILBORT67SHMSLYSQZG2NMXGCMPUZO/
lists.fedoraproject.org/archives/list/[email protected]/message/X73C35MMMZGBVPQQCH7LQZUMYZNQA5FO/
lists.fedoraproject.org/archives/list/[email protected]/message/Z7H26WJ6TPKNWV3QKY4BHKUKQVUTZJTD/
security.gentoo.org/glsa/202208-20
security.netapp.com/advisory/ntap-20211224-0001/
support.apple.com/kb/HT213255
support.apple.com/kb/HT213256
support.apple.com/kb/HT213257
www.debian.org/security/2022/dsa-5035
www.oracle.com/security-alerts/cpuapr2022.html
www.oracle.com/security-alerts/cpujan2022.html
www.tenable.com/security/tns-2022-01
www.tenable.com/security/tns-2022-03
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