lighttpd -- remote DoS in HTTP authentication

ID C6521B04-314B-11E1-9CF4-5404A67EEF98
Type freebsd
Reporter FreeBSD
Modified 2011-11-29T00:00:00


US-CERT/NIST reports:

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.