Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling') vulnerability in mod_proxy_ajp of Apache HTTP Server allows an attacker to smuggle requests to the AJP server it forwards requests to. This issue affects Apache HTTP Server Apache HTTP Server 2.4 version 2.4.53 and prior versions.
Max CVSS
7.5
EPSS Score
0.90%
Published
2022-06-09
Updated
2022-08-24
The ap_rwrite() function in Apache HTTP Server 2.4.53 and earlier may read unintended memory if an attacker can cause the server to reflect very large input using ap_rwrite() or ap_rputs(), such as with mod_luas r:puts() function. Modules compiled and distributed separately from Apache HTTP Server that use the 'ap_rputs' function and may pass it a very large (INT_MAX or larger) string must be compiled against current headers to resolve the issue.
Max CVSS
5.3
EPSS Score
0.35%
Published
2022-06-09
Updated
2022-08-24
Apache HTTP Server 2.4.53 and earlier may crash or disclose information due to a read beyond bounds in ap_strcmp_match() when provided with an extremely large input buffer. While no code distributed with the server can be coerced into such a call, third-party modules or lua scripts that use ap_strcmp_match() may hypothetically be affected.
Max CVSS
9.1
EPSS Score
1.48%
Published
2022-06-09
Updated
2022-08-24
In Apache HTTP Server 2.4.53 and earlier, a malicious request to a lua script that calls r:parsebody(0) may cause a denial of service due to no default limit on possible input size.
Max CVSS
7.5
EPSS Score
4.52%
Published
2022-06-09
Updated
2022-08-24
If Apache HTTP Server 2.4.53 is configured to do transformations with mod_sed in contexts where the input to mod_sed may be very large, mod_sed may make excessively large memory allocations and trigger an abort.
Max CVSS
7.5
EPSS Score
42.31%
Published
2022-06-09
Updated
2022-09-07
Apache HTTP Server 2.4.53 and earlier may return lengths to applications calling r:wsread() that point past the end of the storage allocated for the buffer.
Max CVSS
7.5
EPSS Score
0.45%
Published
2022-06-09
Updated
2023-07-21
Apache HTTP Server 2.4.53 and earlier may not send the X-Forwarded-* headers to the origin server based on client side Connection header hop-by-hop mechanism. This may be used to bypass IP based authentication on the origin server/application.
Max CVSS
9.8
EPSS Score
1.06%
Published
2022-06-09
Updated
2022-08-19
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