CVE-2011-1781 Information

Description

SystemTap 1.4 when unprivileged (aka stapusr) mode is enabled allows local users to cause a denial of service (divide-by-zero error and OOPS) via a crafted ELF program with DWARF expressions that are not properly handled by a stap script that performs stack unwinding (aka backtracing).

Reference

http://openwall.com/lists/oss-security/2011/05/20/2 http://secunia.com/advisories/44802 http://sourceware.org/git/?p=systemtap.git;a=commit;h=fa2e3415185a28542d419a641ecd6cddd52e3cd9 http://www.mandriva.com/security/advisories?name=MDVSA-2011:155 http://www.securityfocus.com/bid/47934 https://bugzilla.redhat.com/show_bug.cgi?id=702687 https://rhn.redhat.com/errata/RHSA-2011-0842.html