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[ GLSA 200701-19 ] OpenLDAP: Insecure usage of /tmp during installation
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GLSA
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PostPosted: Tue Jan 23, 2007 11:26 pm    Post subject: [ GLSA 200701-19 ] OpenLDAP: Insecure usage of /tmp during i Reply with quote

Gentoo Linux Security Advisory

Title: OpenLDAP: Insecure usage of /tmp during installation (GLSA 200701-19)
Severity: low
Exploitable: local
Date: January 23, 2007
Updated: March 11, 2007
Bug(s): #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: net-nds/openldap
Vulnerable: < 2.1.30-r10
Vulnerable: < 2.2.28-r7
Vulnerable: < 2.3.30-r2
Unaffected: >= 2.1.30-r10
Unaffected: >= 2.2.28-r7
Unaffected: >= 2.3.30-r2
Architectures: 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:
Code:
# emerge --sync
# emerge --ask --oneshot --verbose "net-nds/openldap"


References

CVE-2007-0476


Last edited by GLSA on Mon Mar 12, 2007 4:18 am; edited 1 time in total
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