1 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
2 |
Gentoo Linux Security Advisory GLSA 200804-18:02 |
3 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
4 |
http://security.gentoo.org/ |
5 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
6 |
|
7 |
Severity: Normal |
8 |
Title: Poppler: User-assisted execution of arbitrary code |
9 |
Date: April 17, 2008 |
10 |
Updated: April 17, 2008 |
11 |
Bugs: #216850 |
12 |
ID: 200804-18:02 |
13 |
|
14 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
15 |
|
16 |
Synopsis |
17 |
======== |
18 |
|
19 |
Poppler does not handle fonts inside PDF files safely, allowing for |
20 |
execution of arbitrary code. |
21 |
|
22 |
Background |
23 |
========== |
24 |
|
25 |
Poppler is a cross-platform PDF rendering library originally based on |
26 |
Xpdf. |
27 |
|
28 |
Affected packages |
29 |
================= |
30 |
|
31 |
------------------------------------------------------------------- |
32 |
Package / Vulnerable / Unaffected |
33 |
------------------------------------------------------------------- |
34 |
1 app-text/poppler < 0.6.3 >= 0.6.3 |
35 |
|
36 |
Description |
37 |
=========== |
38 |
|
39 |
Kees Cook from the Ubuntu Security Team reported that the |
40 |
CairoFont::create() function in the file CairoFontEngine.cc does not |
41 |
verify the type of an embedded font object inside a PDF file before |
42 |
dereferencing a function pointer from it. |
43 |
|
44 |
Impact |
45 |
====== |
46 |
|
47 |
A remote attacker could entice a user to open a specially crafted PDF |
48 |
file with a Poppler-based PDF viewer such as Gentoo's Xpdf, Epdfview, |
49 |
or Evince, potentially resulting in the execution of arbitrary code |
50 |
with the privileges of the user running the application. |
51 |
|
52 |
Workaround |
53 |
========== |
54 |
|
55 |
There is no known workaround at this time. |
56 |
|
57 |
Resolution |
58 |
========== |
59 |
|
60 |
All Poppler users should upgrade to the latest version: |
61 |
|
62 |
# emerge --sync |
63 |
# emerge --ask --oneshot --verbose ">=app-text/poppler-0.6.3" |
64 |
|
65 |
References |
66 |
========== |
67 |
|
68 |
[ 1 ] CVE-2008-1693 |
69 |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-1693 |
70 |
|
71 |
Availability |
72 |
============ |
73 |
|
74 |
This GLSA and any updates to it are available for viewing at |
75 |
the Gentoo Security Website: |
76 |
|
77 |
http://security.gentoo.org/glsa/glsa-200804-18.xml |
78 |
|
79 |
Concerns? |
80 |
========= |
81 |
|
82 |
Security is a primary focus of Gentoo Linux and ensuring the |
83 |
confidentiality and security of our users machines is of utmost |
84 |
importance to us. Any security concerns should be addressed to |
85 |
security@g.o or alternatively, you may file a bug at |
86 |
http://bugs.gentoo.org. |
87 |
|
88 |
License |
89 |
======= |
90 |
|
91 |
Copyright 2008 Gentoo Foundation, Inc; referenced text |
92 |
belongs to its owner(s). |
93 |
|
94 |
The contents of this document are licensed under the |
95 |
Creative Commons - Attribution / Share Alike license. |
96 |
|
97 |
http://creativecommons.org/licenses/by-sa/2.5 |