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 200607-03 ] libTIFF: Multiple buffer overflows
Date: Sun, 09 Jul 2006 16:58:08
Message-Id: 200607091829.31552.jaervosz@gentoo.org
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2 Gentoo Linux Security Advisory GLSA 200607-03
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4 http://security.gentoo.org/
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6
7 Severity: Normal
8 Title: libTIFF: Multiple buffer overflows
9 Date: July 09, 2006
10 Bugs: #135881
11 ID: 200607-03
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14
15 Synopsis
16 ========
17
18 libTIFF contains buffer overflows that could result in arbitrary code
19 execution.
20
21 Background
22 ==========
23
24 libTIFF provides support for reading and manipulating TIFF images.
25
26 Affected packages
27 =================
28
29 -------------------------------------------------------------------
30 Package / Vulnerable / Unaffected
31 -------------------------------------------------------------------
32 1 media-libs/tiff < 3.8.2-r1 >= 3.8.2-r1
33
34 Description
35 ===========
36
37 A buffer overflow has been found in the t2p_write_pdf_string function
38 in tiff2pdf, which can been triggered with a TIFF file containing a
39 DocumentName tag with UTF-8 characters. An additional buffer overflow
40 has been found in the handling of the parameters in tiffsplit.
41
42 Impact
43 ======
44
45 A remote attacker could entice a user to load a specially crafted TIFF
46 file, resulting in the possible execution of arbitrary code.
47
48 Workaround
49 ==========
50
51 There is no known workaround at this time.
52
53 Resolution
54 ==========
55
56 All libTIFF users should upgrade to the latest version:
57
58 # emerge --sync
59 # emerge --ask --oneshot --verbose ">=media-libs/tiff-3.8.2-r1"
60
61 References
62 ==========
63
64 [ 1 ] CVE-2006-2193
65 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2193
66 [ 2 ] CVE-2006-2656
67 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-2656
68
69 Availability
70 ============
71
72 This GLSA and any updates to it are available for viewing at
73 the Gentoo Security Website:
74
75 http://security.gentoo.org/glsa/glsa-200607-03.xml
76
77 Concerns?
78 =========
79
80 Security is a primary focus of Gentoo Linux and ensuring the
81 confidentiality and security of our users machines is of utmost
82 importance to us. Any security concerns should be addressed to
83 security@g.o or alternatively, you may file a bug at
84 http://bugs.gentoo.org.
85
86 License
87 =======
88
89 Copyright 2006 Gentoo Foundation, Inc; referenced text
90 belongs to its owner(s).
91
92 The contents of this document are licensed under the
93 Creative Commons - Attribution / Share Alike license.
94
95 http://creativecommons.org/licenses/by-sa/2.5