CVE-2007-1661

https://notcve.org/view.php?id=CVE-2007-1661

Perl-Compatible Regular Expression (PCRE) library before 7.3 backtracks too far when matching certain input bytes against some regex patterns in non-UTF-8 mode, which allows context-dependent attackers to obtain sensitive information or cause a denial of service (crash), as demonstrated by the "\X?\d" and "\P{L}?\d" patterns. La librería Perl-Compatible Regular Expression (PCRE) anterior a 7.3 vuelve demasiado atrás cuando compara determinados bytes de entrada con algunos patrones de expresiones regulares en modo no-UTF-8, lo cual permite a atacantes locales o remotos (dependiendo del contexto) obtener información sensible o provocar una denegación de servicio (caída), como se ha demostrado mediante los patrones "\X?\d" y "\P{L}? • http://bugs.gentoo.org/show_bug.cgi?id=198976 http://docs.info.apple.com/article.html?artnum=307179 http://docs.info.apple.com/article.html?artnum=307562 http://lists.apple.com/archives/security-announce/2007/Dec/msg00002.html http://lists.apple.com/archives/security-announce/2008/Mar/msg00001.html http://mail.gnome.org/archives/gtk-devel-list/2007-November/msg00022.html http://secunia.com/advisories/27538 http://secunia.com/advisories/27543 http://secunia.com/advisories/27554 h •