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Red Hat Bugzilla – Attachment 856466 Details for
Bug 1051421
CVE-2014-1402 python-jinja2: FileSystemBytecodeCache insecure cache temporary file use
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[patch]
Fix for CVE-2014-0012 that uses lstat instead of stat
python-jinja2-fix-CVE-2014-0012-v2.patch (text/plain), 882 bytes, created by
Bohuslav "Slavek" Kabrda
on 2014-01-28 10:39:13 UTC
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Description:
Fix for CVE-2014-0012 that uses lstat instead of stat
Filename:
MIME Type:
Creator:
Bohuslav "Slavek" Kabrda
Created:
2014-01-28 10:39:13 UTC
Size:
882 bytes
patch
obsolete
>diff --git a/jinja2/bccache.py b/jinja2/bccache.py >index 09ff845..c31a905 100644 >--- a/jinja2/bccache.py >+++ b/jinja2/bccache.py >@@ -16,6 +16,7 @@ > """ > from os import path, listdir > import os >+import stat > import sys > import errno > import marshal >@@ -230,6 +231,14 @@ class FileSystemBytecodeCache(BytecodeCache): > if e.errno != errno.EEXIST: > raise > >+ if os.lstat(actual_dir).st_uid != os.getuid(): >+ raise RuntimeError('Someone else owns temp directory with your ' >+ 'uid. You need to explicitly provide another.') >+ >+ if stat.S_IMODE(os.lstat(actual_dir).st_mode) != 448: >+ raise RuntimeError('Bad permission flags on temp directory, ' >+ 'shoud be 0700. You need to fix this.') >+ > return actual_dir > > def _get_cache_filename(self, bucket):
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