Integer signedness error in the base64_decode function in the HTTP
authentication functionality (http_auth.c) in lighttpd 1.4 before
1.4.30 and 1.5 before SVN revision 2806 allows remote attackers to
cause a denial of service (segmentation fault) via crafted base64
input that triggers an out-of-bounds read with a negative index.
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
BUGTRAQ:20111224 Lighttpd Proof of Concept code for CVE-2011-4362
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