OpenLDAP, Gauche: RUNPATH issues

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200512-07 / OpenLDAP Gauche
Release Date	December 15, 2005
Latest Revision	December 30, 2007: 03
Impact	low
Exploitable	local

Package	Vulnerable versions	Unaffected versions	Architecture(s)
net-nds/openldap	< 2.2.28-r3	>= 2.2.28-r3, revision >= 2.1.30-r6	All supported architectures
dev-scheme/gauche	< 0.8.6-r1	>= 0.8.6-r1	All supported architectures

Related bugreports: #105380, #112577

Synopsis

OpenLDAP and Gauche suffer from RUNPATH issues that may allow users in the "portage" group to escalate privileges.

2. Impact Information

Background

OpenLDAP is a suite of LDAP-related application and development tools. Gauche is an R5RS Scheme interpreter.

Description

Gentoo packaging for OpenLDAP and Gauche may introduce insecure paths into the list of directories that are searched for libraries at runtime.

Impact

A local attacker, who is a member of the "portage" group, could create a malicious shared object in the Portage temporary build directory that would be loaded at runtime by a dependent binary, potentially resulting in privilege escalation.

3. Resolution Information

Workaround

Only grant "portage" group rights to trusted users.

Resolution

All OpenLDAP users should upgrade to the latest version:

Code Listing 3.1: Resolution

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

All Gauche users should upgrade to the latest version:

Code Listing 3.2: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=dev-scheme/gauche-0.8.6-r1"

4. References

Page updated December 15, 2005

Summary: This is a Gentoo Linux Security Advisory

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