CVE-2007-4772 – postgresql DoS via infinite loop in regex NFA optimization code

https://notcve.org/view.php?id=CVE-2007-4772

The regular expression parser in TCL before 8.4.17, as used in PostgreSQL 8.2 before 8.2.6, 8.1 before 8.1.11, 8.0 before 8.0.15, and 7.4 before 7.4.19, allows context-dependent attackers to cause a denial of service (infinite loop) via a crafted regular expression. El intérprete de expresiones regulares en TCL en versiones anteriores a 8.4.17, como se utiliza en PostgreSQL 8.2 en versiones anteriores a 8.2.6, 8.1 en versiones anteriores a 8.1.11, 8.0 en versiones anteriores a 8.0.15 y 7.4 en versiones anteriores a 7.4.19, permite a atacantes dependientes del contexto provocar una denegación de servicio (bucle infinito) a través de una expresión regular manipulada. • http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c01420154 http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705 http://lists.opensuse.org/opensuse-security-announce/2008-02/msg00000.html http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00049.html http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00052.html http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00054.html http://lists.opensuse.org/opensuse-security-announce/2016-02/msg00056 • CWE-399: Resource Management Errors CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') •