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Red Hat: RHSA-2010-0126-01 Low: SystemTap Memory Safety Concern

red hat
Calendar Grey March 1, 2010
Dist Redhat Esm H88
Cautious systemtap patch release for Red Hat Enterprise Linux addressing buffer overflow vulnerability affecting system efficiency.
Updated systemtap packages that fix a security issue are now available for Red Hat Enterprise Linux 4

Solution

Before applying this update, make sure that all previously-released errata relevant to your system have been applied.

This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at

Summary

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 buffer overflow flaw was found in SystemTap's tapset __get_argv() function. If a privileged user ran a SystemTap script that called this function, a local, unprivileged user could, while that script is still running, trigger this flaw and cause memory corruption by running a command with a large argument list, which may lead to a system crash or, potentially, arbitrary code execution with root privileges. (CVE-2010-0411)
Note: SystemTap scripts that call __get_argv(), being a privileged function, can only be executed by the root user or users in the stapdev group. As well, if such a script was compiled and installed by root, usersin the stapusr group would also be able to execute it.
SystemTap users should upgrade to these updated packages, which contain a backported patch to correct this issue.

Topics%20covered

Topics Covered

security advisory Red Hat buffer overflow moderate impact systemtap

References

https://access.redhat.com/security/cve/CVE-2010-0411 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Enterprise Linux AS version 4:
Source:
i386: systemtap-0.6.2-2.el4_8.1.i386.rpm systemtap-debuginfo-0.6.2-2.el4_8.1.i386.rpm systemtap-runtime-0.6.2-2.el4_8.1.i386.rpm systemtap-testsuite-0.6.2-2.el4_8.1.i386.rpm
ia64: systemtap-0.6.2-2.el4_8.1.ia64.rpm systemtap-debuginfo-0.6.2-2.el4_8.1.ia64.rpm systemtap-runtime-0.6.2-2.el4_8.1.ia64.rpm systemtap-testsuite-0.6.2-2.el4_8.1.ia64.rpm
ppc: systemtap-0.6.2-2.el4_8.1.ppc64.rpm systemtap-debuginfo-0.6.2-2.el4_8.1.ppc64.rpm systemtap-runtime-0.6.2-2.el4_8.1.ppc64.rpm systemtap-testsuite-0.6.2-2.el4_8.1.ppc64.rpm
x86_64: systemtap-0.6.2-2.el4_8.1.x86_64.rpm systemtap-debuginfo-0.6.2-2.el4_8.1.x86_64.rpm systemtap-runtime-0.6.2-2.el4_8.1.x86_64.rpm systemtap-testsuite-0.6.2-2.el4_8.1.x86_64.rpm
Red Hat Enterprise Linux Desktop version 4:
Source:
i386: systemtap-0.6.2-2.el4_8.1.i386.rpm systemtap-debuginfo-0.6.2-2.el4_8.1.i386.rpm systemtap-runtime-0.6.2-2.el4_8.1.i386.rpm systemtap-testsuite-0.6.2-2.el4_8.1.i386.rpm
x86_64: systemtap-0.6.2-2.el4_8.1.x86_64.rpm systemtap-debuginfo-0.6.2-2.el4_8.1.x86_64.rpm systemtap-runtime-0.6.2-2.el4_8.1.x86_64.rpm systemtap-testsuite-0.6.2-2.el4_8.1.x86_64.rpm
Red Hat Enterprise Linux ES version 4:
Source:
i386: systemtap-0.6.2-2.el4_8.1.i386.rpm

Read the Full Advisory


Advisory ID: RHSA-2010:0125-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2010:0125.html
Issue date: 2010-03-01

Topic

Updated systemtap packages that fix a security issue are now available forRed Hat Enterprise Linux 4.This update has been rated as having moderate security impact by the RedHat Security Response Team.

Topics%20covered

Topics Covered

security advisory Red Hat buffer overflow moderate impact systemtap

Relevant Releases Architectures

Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, x86_64

Red Hat Enterprise Linux Desktop version 4 - i386, x86_64

Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64

Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64

Bugs Fixed

559719 - CVE-2010-0411 systemtap: Crash with systemtap script using __get_argv()

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