Gentoo Archives: gentoo-announce

From: Sune Kloppenborg Jeppesen <jaervosz@g.o>
To: gentoo-announce@l.g.o
Cc: bugtraq@×××××××××××××.com, full-disclosure@××××××××××××××.uk, security-alerts@×××××××××××××.com
Subject: [gentoo-announce] [ GLSA 200508-08 ] Xpdf, Kpdf, GPdf: Denial of Service vulnerability
Date: Tue, 16 Aug 2005 05:50:08
Message-Id: 200508160719.12808.jaervosz@gentoo.org
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2 Gentoo Linux Security Advisory GLSA 200508-08
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4 http://security.gentoo.org/
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6
7 Severity: Normal
8 Title: Xpdf, Kpdf, GPdf: Denial of Service vulnerability
9 Date: August 16, 2005
10 Bugs: #99769, #100263, #100265
11 ID: 200508-08
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14
15 Synopsis
16 ========
17
18 Xpdf, Kpdf and GPdf may crash as a result of a Denial of Service
19 vulnerability.
20
21 Background
22 ==========
23
24 Xpdf, Kpdf and GPdf are PDF file viewers that run under the X Window
25 System. Kpdf and GPdf both contain Xpdf code. Kpdf is also part of
26 kdegraphics.
27
28 Affected packages
29 =================
30
31 -------------------------------------------------------------------
32 Package / Vulnerable / Unaffected
33 -------------------------------------------------------------------
34 1 app-text/xpdf < 3.00-r10 >= 3.00-r10
35 2 kde-base/kdegraphics < 3.3.2-r3 >= 3.3.2-r3
36 3 kde-base/kpdf < 3.4.1-r1 >= 3.4.1-r1
37 4 app-text/gpdf < 2.10.0-r1 >= 2.10.0-r1
38 -------------------------------------------------------------------
39 4 affected packages on all of their supported architectures.
40 -------------------------------------------------------------------
41
42 Description
43 ===========
44
45 Xpdf, Kpdf and GPdf do not handle a broken table of embedded TrueType
46 fonts correctly. After detecting such a table, Xpdf, Kpdf and GPdf
47 attempt to reconstruct the information in it by decoding the PDF file,
48 which causes the generation of a huge temporary file.
49
50 Impact
51 ======
52
53 A remote attacker may cause a Denial of Service by creating a specially
54 crafted PDF file, sending it to a CUPS printing system (which uses
55 Xpdf), or by enticing a user to open it in Xpdf, Kpdf, or GPdf.
56
57 Workaround
58 ==========
59
60 There is no known workaround at this time.
61
62 Resolution
63 ==========
64
65 All Xpdf users should upgrade to the latest version:
66
67 # emerge --sync
68 # emerge --ask --oneshot --verbose ">=app-text/xpdf-3.00-r10"
69
70 All GPdf users should upgrade to the latest version:
71
72 # emerge --sync
73 # emerge --ask --oneshot --verbose ">=app-text/gpdf-2.10.0-r1"
74
75 All Kpdf users should upgrade to the latest version:
76
77 # emerge --sync
78 # emerge --ask --oneshot --verbose ">=kde-base/kdegraphics-3.3.2-r3"
79
80 All KDE Split Ebuild Kpdf users should upgrade to the latest version:
81
82 # emerge --sync
83 # emerge --ask --oneshot --verbose ">=kde-base/kpdf-3.4.1-r1"
84
85 References
86 ==========
87
88 [ 1 ] CAN-2005-2097
89 http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-2097
90
91 Availability
92 ============
93
94 This GLSA and any updates to it are available for viewing at
95 the Gentoo Security Website:
96
97 http://security.gentoo.org/glsa/glsa-200508-08.xml
98
99 Concerns?
100 =========
101
102 Security is a primary focus of Gentoo Linux and ensuring the
103 confidentiality and security of our users machines is of utmost
104 importance to us. Any security concerns should be addressed to
105 security@g.o or alternatively, you may file a bug at
106 http://bugs.gentoo.org.
107
108 License
109 =======
110
111 Copyright 2005 Gentoo Foundation, Inc; referenced text
112 belongs to its owner(s).
113
114 The contents of this document are licensed under the
115 Creative Commons - Attribution / Share Alike license.
116
117 http://creativecommons.org/licenses/by-sa/2.0