Synopsis:    Moderate: systemtap security update
Issue Date:  2011-05-31
CVE Numbers: CVE-2011-1769


SystemTap is an instrumentation system for systems running the Linux
kernel, version 2.6. Developers can write scripts to collect data on the
operation of the system.

A divide-by-zero flaw was 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 this 
flaw to crash the system. Additionally, a privileged user (root, or a 
member of the stapdev group) could trigger this flaw when tricked into 
instrumenting a specially-crafted ELF binary, even when unprivileged 
mode was not enabled. (CVE-2011-1769)

SystemTap users should upgrade to these updated packages, which contain 
a backported patch to correct this issue.

SL5:
   x86_64
      systemtap-testsuite-1.3-4.el5_6.1.x86_64.rpm
      systemtap-server-1.3-4.el5_6.1.x86_64.rpm
      systemtap-sdt-devel-1.3-4.el5_6.1.x86_64.rpm
      systemtap-sdt-devel-1.3-4.el5_6.1.i386.rpm
      systemtap-runtime-1.3-4.el5_6.1.x86_64.rpm
      systemtap-initscript-1.3-4.el5_6.1.x86_64.rpm
      systemtap-debuginfo-1.3-4.el5_6.1.x86_64.rpm
      systemtap-debuginfo-1.3-4.el5_6.1.i386.rpm
      systemtap-client-1.3-4.el5_6.1.x86_64.rpm
      systemtap-1.3-4.el5_6.1.x86_64.rpm
   i386
      systemtap-testsuite-1.3-4.el5_6.1.i386.rpm
      systemtap-server-1.3-4.el5_6.1.i386.rpm
      systemtap-sdt-devel-1.3-4.el5_6.1.i386.rpm
      systemtap-runtime-1.3-4.el5_6.1.i386.rpm
      systemtap-initscript-1.3-4.el5_6.1.i386.rpm
      systemtap-debuginfo-1.3-4.el5_6.1.i386.rpm
      systemtap-client-1.3-4.el5_6.1.i386.rpm
      systemtap-1.3-4.el5_6.1.i386.rpm

- Scientific Linux Development Team