Raphael Geissert conducted a review of various packages in Debian and found that gnome-subtitles contained a script that could be abused by an attacker to execute arbitrary code [1].

The vulnerability is due to an insecure change to LD_LIBRARY_PATH, and environment variable used by ld.so(8) to look for libraries in directories other than the standard paths.  When there is an empty item in the colon-separated list of directories in LD_LIBRARY_PATH, ld.so(8) treats it as a '.' (current working directory).  If the given script is executed from a directory where a local attacker could write files, there is a chance for exploitation.

In Fedora, /usr/bin/gnome-subtitles re-sets LD_LIBRARY_PATH insecurely:

export LD_LIBRARY_PATH="$libdir/gnome-subtitles:$LD_LIBRARY_PATH"

A solution is to patch the script to test if $LD_LIBRARY_PATH is set first before attempting to modify it:

if [ -z ${LD_LIBRARY_PATH} ]; then
    export LD_LIBRARY_PATH=/usr/lib/foo
else
    export LD_LIBRARY_PATH=/usr/lib/foo:${LD_LIBRARY_PATH}
fi

This issue has been assigned the name CVE-2010-3357.

[1] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=598289