Multiple vulnerabilities have been identified in Lighttpd, which could be exploited by remote attackers to bypass security restrictions or cause a denial of service.
The first issue is caused by a memory leak in the "http_request_parse()" [request.c] function, which could allow attackers to create a denial of service by sending a large number of requests with duplicate request headers to a vulnerable server.
The second vulnerability is caused by an error within the handling of URL patterns, which could allow remote attackers to bypass security restrictions, and obtain sensitive information or potentially modify certain data.
The third issue is caused by an error in "mod_userdir" when handling filenames on a case-insensitive operating system or filesystem, which could allow attackers to bypass security restrictions and gain unauthorized access to certain resources.
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