[Secure-testing-team] Bug#476321: cecilia: Unsafe temp file

[Felipe Sateler]

Package: cecilia
Version: 2.0.5-2
Severity: grave
Tags: security
Justification: user security hole

lib/prefs.tcl does, at line 185:
	catch {exec $csound >& /tmp/csvers}
	set f [open /tmp/csvers r]

A malicious user could create /tmp/csvers as a symlink to another file,
and when cecilia is started, that data would get destroyed.

-- System Information:
Debian Release: lenny/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.24-1-amd64 (SMP w/2 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages cecilia depends on:
ii  csound                  1:5.08.0.dfsg2-1 powerful and versatile sound synth
ii  tk8.4                   8.4.18-1         Tk toolkit for Tcl and X11, v8.4 -

cecilia recommends no packages.

-- no debconf information