Description
Two divide-by-zero flaws were found in the way SystemTap handled malformed
debugging information in DWARF format. When SystemTap unprivileged mode was
enabled, an unprivileged user in the stapusr group could use these flaws to
crash the system. Additionally, a privileged user (root, or a member of the
stapdev group) could trigger these flaws when tricked into instrumenting a
specially-crafted ELF binary, even when unprivileged mode was not enabled.
(CVE-2011-1769, CVE-2011-1781)