LinPopUp: Buffer overflow in message reply

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200501-01 / Linpopup
Release Date	January 04, 2005
Latest Revision	January 04, 2005: 01
Impact	normal
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
net-im/linpopup	< 2.0.4-r1	>= 2.0.4-r1	All supported architectures

Related bugreports: #74705

Synopsis

LinPopUp contains a buffer overflow potentially allowing execution of arbitrary code.

2. Impact Information

Background

LinPopUp is a graphical application that acts as a frontend to Samba client messaging functions, allowing a Linux desktop to communicate with a Microsoft Windows computer that runs Winpopup.

Description

Stephen Dranger discovered that LinPopUp contains a buffer overflow in string.c, triggered when replying to a remote user message.

Impact

A remote attacker could craft a malicious message that, when replied using LinPopUp, would exploit the buffer overflow. This would result in the execution of arbitrary code with the privileges of the user running LinPopUp.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All LinPopUp users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-im/linpopup-2.0.4-r1"

4. References

Updated January 04, 2005

Summary: This is a Gentoo Linux Security Advisory

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