uim: Privilege escalation vulnerability

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200502-31 / uim
Release Date	February 28, 2005
Latest Revision	February 28, 2005: 01
Impact	normal
Exploitable	local

Package	Vulnerable versions	Unaffected versions	Architecture(s)
app-i18n/uim	< 0.4.5.1	>= 0.4.5.1	All supported architectures

Related bugreports: #82678

Synopsis

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

2. Impact Information

Background

uim is a simple, secure and flexible input method library.

Description

Takumi Asaki discovered that uim insufficiently checks environment variables. setuid/setgid applications linked against libuim could end up executing arbitrary code. This vulnerability 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 available version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=app-i18n/uim-0.4.5.1"

4. References

Updated February 28, 2005

Summary: This is a Gentoo Linux Security Advisory

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