CVE-2011-4623 Information

Description

Integer overflow in the rsCStrExtendBuf function in runtime/stringbuf.c in the imfile module in rsyslog 4.x before 4.6.6 5.x before 5.7.4 and 6.x before 6.1.4 allows local users to cause a denial of service (daemon hang) via a large file which triggers a heap-based buffer overflow.

Reference

http://bugzilla.adiscon.com/show_bug.cgi?id=221 http://git.adiscon.com/?p=rsyslog.git;a=commit;h=6bad782f154b7f838c7371bf99c13f6dc4ec4101 http://rsyslog.com/changelog-for-4-6-6-v4-stable/ http://rsyslog.com/changelog-for-5-7-4-v5-beta/ http://rsyslog.com/changelog-for-6-1-4-devel/ http://secunia.com/advisories/45848 http://secunia.com/advisories/47698 http://www.openwall.com/lists/oss-security/2011/12/22/2 http://www.securityfocus.com/bid/51171 http://www.securitytracker.com/id?1026556 http://www.ubuntu.com/usn/USN-1338-1 https://bugzilla.redhat.com/show_bug.cgi?id=769822