Package: tangogps
Version: 0.9.3-2
Severity: serious
Hello,
thanks for maintaining tangogps.
I have noticed that it has a tendency to segfault when I type long POI
descriptions. The backtrace is rather useless, except it points at the
update_poi function. A quick glance at the function shows the issue:
char sql[512];
[...]
g_snprintf(sql, 2048,
"UPDATE "
"poi "
"SET "
"lat=%f,"
"lon=%f,"
"keywords='%s',"
"desc='%s'"
"WHERE "
"idmd5='%s'"
,
lat_deg, lon_deg,
keyword, desc, idmd5);
Doh. The buffer is 512 bytes, but the limit given to snprintf is 2048:
boom. Fixing the buffer to be 2048 bytes is a quick fix, but in the
long term the function need considerable smartening up: if a long (>1900
or so bytes) is pasted in the field (say, the menu of a restaurant
pasted form a web page, or extensive road directions), it will still
lead to a truncated, and therefore invalid, SQL query.
Ciao,
Enrico
-- System Information:
Debian Release: 5.0
APT prefers testing
APT policy: (500, 'testing')
Architecture: amd64 (x86_64)
Kernel: Linux 2.6.26-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/bash
Versions of packages tangogps depends on:
ii libatk1.0-0 1.22.0-1 The ATK accessibility toolkit
ii libc6 2.7-18 GNU C Library: Shared libraries
ii libcairo2 1.6.4-7 The Cairo 2D vector graphics libra
ii libcurl3-gnutls 7.18.2-8 Multi-protocol file transfer libra
ii libgconf2-4 2.22.0-1 GNOME configuration database syste
ii libglib2.0-0 2.16.6-1 The GLib library of C routines
ii libgtk2.0-0 2.12.11-4 The GTK+ graphical user interface
ii libpango1.0-0 1.20.5-3 Layout and rendering of internatio
ii libsqlite3-0 3.5.9-5 SQLite 3 shared library
Versions of packages tangogps recommends:
ii gpsd 2.37-7 GPS (Global Positioning System) da
tangogps suggests no packages.
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