Integer Signedness Error in base64_decode Function in lighttpd HTTP Authentication Functionality

CVE-2011-4362 · MEDIUM Severity

AV:N/AC:L/AU:N/C:N/I:N/A:P

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.

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