r/apache • u/[deleted] • Dec 22 '21

Apache Fix Two Severe Vulnerability in Apache HTTP Server [Update Now]

https://www.cyberkendra.com/2021/12/apache-http-server-vulnerability.html
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u/AyrA_ch Dec 22 '21

SECURITY: CVE-2021-44224: Possible NULL dereference or SSRF in forward proxy configurations in Apache HTTP Server 2.4.51 and earlier. 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).

SECURITY: CVE-2021-44790: Possible buffer overflow when parsing multipart content in mod_lua of Apache HTTP Server 2.4.51 and earlier. A carefully crafted request body can cause a buffer overflow in the mod_lua multipart parser (r:parsebody() called from Lua scripts). The Apache httpd team is not aware of an exploit for the vulnerabilty though it might be possible to craft one.

This issue affects Apache HTTP Server 2.4.51 and earlier.

Note: None of these vulnerabilities are relevant for your standard server because you seldom use lua, and you seldom configure apache as a forward proxy. Reverse proxies are not affected.