Scientific Linux: 2011-05-31 Moderate: SystemTap Crash Risk Fix

Date: Wed, 1 Jun 2011 11:40:19 -0500
Reply-To: Troy Dawson 
Sender: Security Errata for Scientific Linux
 
From: Troy Dawson 
Subject: Security ERRATA Moderate: systemtap on SL5.x i386/x86_64
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MIME-Version: 1.0

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