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Weex: Format string vulnerability


1.  Gentoo Linux Security Advisory

Version Information

Advisory Reference GLSA 200510-09 / Weex
Release Date October 08, 2005
Latest Revision October 08, 2005: 01
Impact normal
Exploitable remote
Package Vulnerable versions Unaffected versions Architecture(s)
net-ftp/weex < >= All supported architectures

Related bugreports: #107849


Weex contains a format string error that may be exploited by malicious servers to execute arbitrary code.

2.  Impact Information


Weex is a non-interactive FTP client typically used to update web pages.


Ulf Harnhammar discovered a format string bug in Weex that can be triggered when it is first run (or when its cache files are rebuilt, using the -r option).


An attacker could setup a malicious FTP server which, when accessed using Weex, could trigger the format string bug and end up executing arbitrary code with the rights of the user running Weex.

3.  Resolution Information


There is no known workaround at this time.


All Weex users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-ftp/weex-"

4.  References


Page updated October 08, 2005

Summary: This is a Gentoo Linux Security Advisory

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