Unspecified vulnerability in Joomla! 1.7.x before 1.7.5 allows attackers to read the error log via unknown vectors.
http://www.openwall.com/lists/oss-security/2012/02/03/9
http://www.openwall.com/lists/oss-security/2012/02/03/6
http://www.joomla.org/announcements/release-news/5411-joomla-175-released.html
http://secunia.com/advisories/47847
http://developer.joomla.org/security/news/388-20120201-core-information-disclosure