Gentoo Archives: gentoo-announce

From: Thierry Carrez <koon@g.o>
To: gentoo-announce@l.g.o
Cc: bugtraq@×××××××××××××.com, full-disclosure@××××××××××××××.uk, security-alerts@×××××××××××××.com
Subject: [gentoo-announce] [ GLSA 200509-07 ] X.Org: Heap overflow in pixmap allocation
Date: Mon, 12 Sep 2005 15:55:15
Message-Id: 4325A18B.3040209@gentoo.org
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2 Gentoo Linux Security Advisory GLSA 200509-07
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4 http://security.gentoo.org/
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6
7 Severity: High
8 Title: X.Org: Heap overflow in pixmap allocation
9 Date: September 12, 2005
10 Bugs: #105688
11 ID: 200509-07
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14
15 Synopsis
16 ========
17
18 An integer overflow in pixmap memory allocation potentially allows any
19 X.Org user to execute arbitrary code with elevated privileges.
20
21 Background
22 ==========
23
24 X.Org is X.Org Foundation's Public Implementation of the X Window
25 System.
26
27 Affected packages
28 =================
29
30 -------------------------------------------------------------------
31 Package / Vulnerable / Unaffected
32 -------------------------------------------------------------------
33 1 x11-base/xorg-x11 < 6.8.2-r3 >= 6.8.2-r3
34
35 Description
36 ===========
37
38 X.Org is missing an integer overflow check during pixmap memory
39 allocation.
40
41 Impact
42 ======
43
44 An X.Org user could exploit this issue to make the X server execute
45 arbitrary code with elevated privileges.
46
47 Workaround
48 ==========
49
50 There is no known workaround at this time.
51
52 Resolution
53 ==========
54
55 All X.org users should upgrade to the latest version:
56
57 # emerge --sync
58 # emerge --ask --oneshot --verbose ">=x11-base/xorg-x11-6.8.2-r3"
59
60 References
61 ==========
62
63 [ 1 ] CAN-2005-2495
64 http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-2495
65
66 Availability
67 ============
68
69 This GLSA and any updates to it are available for viewing at
70 the Gentoo Security Website:
71
72 http://security.gentoo.org/glsa/glsa-200509-07.xml
73
74 Concerns?
75 =========
76
77 Security is a primary focus of Gentoo Linux and ensuring the
78 confidentiality and security of our users machines is of utmost
79 importance to us. Any security concerns should be addressed to
80 security@g.o or alternatively, you may file a bug at
81 http://bugs.gentoo.org.
82
83 License
84 =======
85
86 Copyright 2005 Gentoo Foundation, Inc; referenced text
87 belongs to its owner(s).
88
89 The contents of this document are licensed under the
90 Creative Commons - Attribution / Share Alike license.
91
92 http://creativecommons.org/licenses/by-sa/2.0

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