CentOS Errata and Security Advisory CESA-2010:0679
The RPM Package Manager (RPM) is a command line driven package management system capable of installing, uninstalling, verifying, querying, and updating software packages.
It was discovered that RPM did not remove setuid and setgid bits set on binaries when upgrading packages. A local attacker able to create hard links to binaries could use this flaw to keep those binaries on the system, at a specific version level and with the setuid or setgid bit set, even if the package providing them was upgraded by a system administrator. This could have security implications if a package was upgraded because of a security flaw in a setuid or setgid program. (CVE-2010-2059)
This update also fixes the following bug:
All users of rpm are advised to upgrade to these updated packages, which contain backported patches to correct these issues.
Merged security bulletin from advisories: http://lists.centos.org/pipermail/centos-announce/2010-September/016978.html http://lists.centos.org/pipermail/centos-announce/2010-September/016979.html
Affected packages: popt rpm rpm-apidocs rpm-build rpm-devel rpm-libs rpm-python
Upstream details at: https://rhn.redhat.com/errata/RHSA-2010-0679.html