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$NetBSD: patch-src_common_latex.py,v 1.1 2012/04/17 20:57:09 gls Exp $
CVE-2012-2093: improve temp file search when using latex to prevent overwriting files
Taken from upstream repository: https://trac.gajim.org/changeset/13759/src/common/latex.py
--- src/common/latex.py.orig 2012-03-18 11:25:56.000000000 +0000
+++ src/common/latex.py
@@ -59,8 +59,19 @@ def check_blacklist(str_):
def get_tmpfile_name():
random.seed()
- int_ = random.randint(0, 100)
- return os.path.join(gettempdir(), 'gajimtex_' + int_.__str__())
+ while(nb < 100):
+ int_ = random.randint(0, 10000)
+ filename = os.path.join(gettempdir(), 'gajimtex_' + int_.__str__())
+ # Check if a file to not overwrite it
+ ok = True
+ extensions = ['.tex', '.log', '.aux', '.dvi']
+ for ext in extensions:
+ if os.path.exists(filename + ext):
+ ok = False
+ break
+ if ok:
+ return filename
+ return filename
def write_latex(filename, str_):
texstr = '\\documentclass[12pt]{article}\\usepackage[dvips]{graphicx}'
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