Gentoo Archives: gentoo-announce

From: Stefan Behte <craig@g.o>
To: gentoo-announce@g.o, bugtraq@×××××××××××××.com, full-disclosure@××××××××××××××.uk, security-alerts@×××××××××××××.com
Subject: [gentoo-announce] [ GLSA 201001-07 ] Blender: Untrusted search path
Date: Wed, 13 Jan 2010 22:17:32
Message-Id: 4B4E446B.3020306@gentoo.org
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2 Gentoo Linux Security Advisory GLSA 201001-07
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4 http://security.gentoo.org/
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6
7 Severity: Normal
8 Title: Blender: Untrusted search path
9 Date: January 13, 2010
10 Bugs: #245310
11 ID: 201001-07
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14
15 Synopsis
16 ========
17
18 An untrusted search path vulnerability in Blender might result in the
19 execution of arbitrary code.
20
21 Background
22 ==========
23
24 Blender is a 3D Creation/Animation/Publishing System.
25
26 Affected packages
27 =================
28
29 -------------------------------------------------------------------
30 Package / Vulnerable / Unaffected
31 -------------------------------------------------------------------
32 1 media-gfx/blender < 2.48a-r3 >= 2.48a-r3
33
34 Description
35 ===========
36
37 Steffen Joeris reported that Blender's BPY_interface calls
38 PySys_SetArgv() in such a way that Python prepends sys.path with an
39 empty string.
40
41 Impact
42 ======
43
44 A local attacker could entice a user to run "blender" from a directory
45 containing a specially crafted Python module, resulting in the
46 execution of arbitrary code with the privileges of the user running the
47 application.
48
49 Workaround
50 ==========
51
52 There is no known workaround at this time.
53
54 Resolution
55 ==========
56
57 All Blender users should upgrade to the latest version:
58
59 # emerge --sync
60 # emerge --ask --oneshot --verbose ">=media-gfx/blender-2.48a-r3"
61
62 References
63 ==========
64
65 [ 1 ] CVE-2008-4863
66 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-4863
67
68 Availability
69 ============
70
71 This GLSA and any updates to it are available for viewing at
72 the Gentoo Security Website:
73
74 http://security.gentoo.org/glsa/glsa-201001-07.xml
75
76 Concerns?
77 =========
78
79 Security is a primary focus of Gentoo Linux and ensuring the
80 confidentiality and security of our users machines is of utmost
81 importance to us. Any security concerns should be addressed to
82 security@g.o or alternatively, you may file a bug at
83 https://bugs.gentoo.org.
84
85 License
86 =======
87
88 Copyright 2010 Gentoo Foundation, Inc; referenced text
89 belongs to its owner(s).
90
91 The contents of this document are licensed under the
92 Creative Commons - Attribution / Share Alike license.
93
94 http://creativecommons.org/licenses/by-sa/2.5

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