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LinPopUp: Buffer overflow in message reply


1.  Gentoo Linux Security Advisory

Version Information

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


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

2.  Impact Information


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.


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


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


There is no known workaround at this time.


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


Page updated January 04, 2005

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