Array index error in the uri_lookup function in the URI parser for neon 0.26.0 to 0.26.2, possibly only on 64-bit platforms, allows remote malicious servers to cause a denial of service (crash) via a URI with non-ASCII characters, which triggers a buffer under-read due to a type conversion error that generates a negative index.
http://www.webdav.org/cadaver/
http://www.vupen.com/english/advisories/2007/0362
http://www.vupen.com/english/advisories/2007/0172
http://www.securityfocus.com/bid/22035
http://www.novell.com/linux/security/advisories/2007_02_sr.html
http://www.mandriva.com/security/advisories?name=MDKSA-2007:013
http://secunia.com/advisories/23984
http://secunia.com/advisories/23763
http://secunia.com/advisories/23751
http://mailman.webdav.org/pipermail/neon/2007-January/002362.html
http://mailman.webdav.org/pipermail/cadaver/2007-January/001015.html
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=404723
http://bugs.debian.org/cgi-bin/bugreport.cgi/neon26_0.26.2-3_to_mdx1.diff?bug=404723%3Bmsg=5%3Batt=2