CVE-2008-2725

Un desbordamiento de enteros en la función (1) rb_ary_splice en Ruby 1.8.4 y versiones anteriores, 1.8.5 anterior a versión 1.8.5-p231, 1.8.6 anterior a versión 1.8.6-p230 y 1.8.7 anterior a versión 1.8.7-p22; y (2) la función rb_ary_replace en 1.6.x permite a los atacantes dependiendo del contexto desencadenar una corrupción en la memoria por medio de vectores no especificados, también se conoce como la variante "REALLOC_N", un problema diferente a los CVE-2008-2662, CVE-2008-2663 y CVE-2008-2664. NOTA: a partir de 20080624, ha habido un uso incoherente de varios identificadores CVE relacionados con Ruby. La descripción del CVE debe considerarse autorizada, aunque es probable que cambie.

Multiple vulnerabilities have been found in the Ruby interpreter and in Webrick, the webserver bundled with Ruby. Directory traversal vulnerability in WEBrick in Ruby 1.8 before 1.8.5-p115 and 1.8.6-p114, and 1.9 through 1.9.0-1, when running on systems that support backslash (\) path separators or case-insensitive file names, allows remote attackers to access arbitrary files via (1).%5c (encoded backslash) sequences or (2) filenames that match patterns in the :NondisclosureName option. Directory traversal vulnerability in WEBrick in Ruby 1.9.0 and earlier, when using NTFS or FAT filesystems, allows remote attackers to read arbitrary CGI files via a trailing (1) + (plus), (2) %2b (encoded plus), (3). (dot), (4) %2e (encoded dot), or (5) %20 (encoded space) character in the URI, possibly related to the WEBrick::HTTPServlet::FileHandler and WEBrick::HTTPServer.new functionality and the :DocumentRoot option. Multiple integer overflows in the rb_str_buf_append function in Ruby 1.8.4 and earlier, 1.8.5 before 1.8.5-p231, 1.8.6 before 1.8.6-p230, 1.8.7 before 1.8.7-p22, and 1.9.0 before 1.9.0-2 allow context-dependent attackers to execute arbitrary code or cause a denial of service via unknown vectors that trigger memory corruption. Multiple integer overflows in the rb_ary_store function in Ruby 1.8.4 and earlier, 1.8.5 before 1.8.5-p231, 1.8.6 before 1.8.6-p230, and 1.8.7 before 1.8.7-p22 allow context-dependent attackers to execute arbitrary code or cause a denial of service via unknown vectors. The rb_str_format function in Ruby 1.8.4 and earlier, 1.8.5 before 1.8.5-p231, 1.8.6 before 1.8.6-p230, 1.8.7 before 1.8.7-p22, and 1.9.0 before 1.9.0-2 allows context-dependent attackers to trigger memory corruption via unspecified vectors related to alloca. Integer overflow in the rb_ary_splice function in Ruby 1.8.4 and earlier, 1.8.5 before 1.8.5-p231, 1.8.6 before 1.8.6-p230, and 1.8.7 before 1.8.7-p22 allows context-dependent attackers to trigger memory corruption via unspecified vectors, aka the REALLOC_N variant. Integer overflow in the rb_ary_splice function in Ruby 1.8.4 and earlier, 1.8.5 before 1.8.5-p231, 1.8.6 before 1.8.6-p230, 1.8.7 before 1.8.7-p22, and 1.9.0 before 1.9.0-2 allows context-dependent attackers to trigger memory corruption, aka the beg + rlen issue. Integer overflow in the rb_ary_fill function in array.c in Ruby before revision 17756 allows context-dependent attackers to cause a denial of service (crash) or possibly have unspecified other impact via a call to the Array#fill method with a start (aka beg) argument greater than ARY_MAX_SIZE. The updated packages have been patched to fix these issues.