Uim: Privilege escalation vulnerability

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200510-03 / uim
Release Date	October 04, 2005
Latest Revision	May 22, 2006: 02
Impact	normal
Exploitable	local

Package	Vulnerable versions	Unaffected versions	Architecture(s)
app-i18n/uim	< 0.4.9.1	>= 0.4.9.1	All supported architectures

Related bugreports: #107748

Synopsis

Under certain conditions, applications linked against Uim suffer from a privilege escalation vulnerability.

2. Impact Information

Background

Uim is a multilingual input method library which provides secure and useful input method for all languages.

Description

Masanari Yamamoto discovered that Uim uses environment variables incorrectly. This bug causes a privilege escalation if setuid/setgid applications are linked to libuim. This bug only affects immodule-enabled Qt (if you build Qt 3.3.2 or later versions with USE="immqt" or USE="immqt-bc").

Impact

A malicious local user could exploit this vulnerability to execute arbitrary code with escalated privileges.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All Uim users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-i18n/uim-0.4.9.1"

4. References

Updated October 04, 2005

Summary: This is a Gentoo Linux Security Advisory

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