GLSA 200701-19: OpenLDAP: Insecure usage of /tmp during installation

http://security.gentoo.org/

Severity:	low
Title:	OpenLDAP: Insecure usage of /tmp during installation
Date:	01/23/2007
Bugs:	#159508
ID:	200701-19

Synopsis

A shell script commonly released with OpenLDAP makes insecure usage of files in /tmp during the emerge process.

Background

OpenLDAP Software is an open source implementation of the Lightweight Directory Access Protocol.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
net-nds/openldap	< 2.1.30-r10	>= 2.1.30-r10	All supported architectures

Description

Tavis Ormandy of the Gentoo Linux Security Team has discovered that the file gencert.sh distributed with the Gentoo ebuild for OpenLDAP does not exit upon the existence of a directory in /tmp during installation allowing for directory traversal.

Impact

A local attacker could create a symbolic link in /tmp and potentially overwrite arbitrary system files upon a privileged user emerging OpenLDAP.

Workaround

There is no known workaround at this time.

Resolution

All OpenLDAP users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose "net-nds/openldap"

References

CVE-2007-0476

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200701-19.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.