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Red Hat: RHSA-2009:1646-01 Moderate: Libtool Code Execution Threat

red hat
Calendar Grey December 8, 2009
Dist Redhat Esm H88
libtool libraries upgraded to address a significant security vulnerability in Red Hat Enterprise Linux systems. Discover further details.
Updated libtool packages that fix one security issue are now available for Red Hat Enterprise Linux 3, 4, and 5. This update has been rated as having moderate security impact by t...

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

GNU Libtool is a set of shell scripts which automatically configure UNIX, Linux, and similar operating systems to generically build shared libraries.
A flaw was found in the way GNU Libtool's libltdl library looked for modules to load. It was possible for libltdl to load and run modules from an arbitrary library in the current working directory. If a local attacker could trick a local user into running an application (which uses libltdl) from an attacker-controlled directory containing a malicious Libtool control file (.la), the attacker could possibly execute arbitrary code with the privileges of the user running the application. (CVE-2009-3736)
All libtool users should upgrade to these updated packages, which contain a backported patch to correct this issue. After installing the updated packages, applications using the libltdl library must be restarted for the update to take effect.

Topics%20covered

Topics Covered

security advisory Red Hat software update code execution moderate impact libtool technical advisory

References

https://www.cve.org/CVERecord?id=CVE-2009-3736 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Enterprise Linux AS version 3:
Source:
i386: libtool-1.4.3-7.i386.rpm libtool-debuginfo-1.4.3-7.i386.rpm libtool-libs-1.4.3-7.i386.rpm
ia64: libtool-1.4.3-7.ia64.rpm libtool-debuginfo-1.4.3-7.i386.rpm libtool-debuginfo-1.4.3-7.ia64.rpm libtool-libs-1.4.3-7.i386.rpm libtool-libs-1.4.3-7.ia64.rpm
ppc: libtool-1.4.3-7.ppc.rpm libtool-debuginfo-1.4.3-7.ppc.rpm libtool-debuginfo-1.4.3-7.ppc64.rpm libtool-libs-1.4.3-7.ppc.rpm libtool-libs-1.4.3-7.ppc64.rpm
s390: libtool-1.4.3-7.s390.rpm libtool-debuginfo-1.4.3-7.s390.rpm libtool-libs-1.4.3-7.s390.rpm
s390x: libtool-1.4.3-7.s390x.rpm libtool-debuginfo-1.4.3-7.s390.rpm libtool-debuginfo-1.4.3-7.s390x.rpm libtool-libs-1.4.3-7.s390.rpm libtool-libs-1.4.3-7.s390x.rpm
x86_64: libtool-1.4.3-7.x86_64.rpm libtool-debuginfo-1.4.3-7.i386.rpm libtool-debuginfo-1.4.3-7.x86_64.rpm libtool-libs-1.4.3-7.i386.rpm libtool-libs-1.4.3-7.x86_64.rpm
Red Hat Desktop version 3:
Source:
i386: libtool-1.4.3-7.i386.rpm libtool-debuginfo-1.4.3-7.i386.rpm libtool-libs-1.4.3-7.i386.rpm
x86_64: libtool-1.4.3-7.x86_64.rpm libtool-debuginfo-1.4.3-7.i386.rpm libtool-debuginfo-1.4.3-7.x86_64.rpm libtool-libs-1.4.3-7.i386.rpm libtool-libs-1.4.3-7.x86_64.rpm
Red Hat Enterprise Linux ES version 3:
Source:
i386: libtool-1.4.3-7.i386.rpm

Read the Full Advisory


Advisory ID: RHSA-2009:1646-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2009:1646.html
Issue date: 2009-12-08

Topic

Updated libtool packages that fix one security issue are now available forRed Hat Enterprise Linux 3, 4, and 5.This update has been rated as having moderate security impact by the RedHat Security Response Team.

Topics%20covered

Topics Covered

security advisory Red Hat software update code execution moderate impact libtool technical advisory

Relevant Releases Architectures

RHEL Desktop Workstation (v. 5 client) - i386, x86_64

Red Hat Desktop version 3 - i386, x86_64

Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64

Red Hat Enterprise Linux AS version 3 - i386, ia64, ppc, s390, s390x, x86_64

Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64

Red Hat Enterprise Linux Desktop (v. 5 client) - i386, x86_64

Red Hat Enterprise Linux Desktop version 4 - i386, x86_64

Red Hat Enterprise Linux ES version 3 - i386, ia64, x86_64

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

Red Hat Enterprise Linux WS version 3 - i386, ia64, x86_64

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

Bugs Fixed

537941 - CVE-2009-3736 libtool: libltdl may load and execute code from a library in the current directory

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