RHSA-2009:1646: Moderate: libtool security update

First published: Tue Dec 08 2009(Updated: )

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

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