Buffer overflow in Pico Server (pServ) 2.0 beta 1 through beta 5 allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via (1) a 1024-byte TCP stream message, which triggers an off-by-one buffer overflow, or (2) a long method name in an HTTP request, (3) a long version number in an HTTP request, (4) a long User-Agent header, or (5) a long file path.

Pico Server (pServ) 3.2 and earlier allows remote attackers to execute arbitrary commands via a URL with multiple leading "/" (slash) characters and ".." sequences.

Pico Server (pServ) 3.2 and earlier allows remote attackers to obtain the source code for CGI scripts via "dirname/../cgi-bin" in a URL.

Pico Server (pServ) 3.2 and earlier allows local users to read arbitrary files as the pServ user via a symlink to a file outside of the web document root.

Multiple buffer overflows in handlers.c for Pico Server (pServ) before 3.3 may allow attackers to execute arbitrary code.

Directory traversal vulnerability in Pico Server (pServ) 3.3 allows remote attackers to read arbitrary files and execute arbitrary commands via a /./ (slash dot slash) before each .. (dot dot) sequence in the URL, which results in an incorrect directory depth count.

Heap-based buffer overflow in the CGI extension for Pico Server (pServ) 3.3 allows remote attackers to execute arbitrary code via a long HTTP request.