1 |
-----BEGIN PGP SIGNED MESSAGE----- |
2 |
Hash: SHA1 |
3 |
|
4 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
5 |
Gentoo Linux Security Advisory GLSA 200712-17 |
6 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
7 |
http://security.gentoo.org/ |
8 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
9 |
|
10 |
Severity: Normal |
11 |
Title: exiftags: Multiple vulnerabilities |
12 |
Date: December 29, 2007 |
13 |
Bugs: #202354 |
14 |
ID: 200712-17 |
15 |
|
16 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
17 |
|
18 |
Synopsis |
19 |
======== |
20 |
|
21 |
Multiple vulnerabilities in exiftags possibly allow for the execution |
22 |
of arbitrary code or a Denial of Service. |
23 |
|
24 |
Background |
25 |
========== |
26 |
|
27 |
exiftags is a library and set of tools for parsing, editing and saving |
28 |
Exif metadata from images. Exif, the Exchangeable image file format, |
29 |
specifies the addition of metadata tags to JPEG, TIFF and RIFF files. |
30 |
|
31 |
Affected packages |
32 |
================= |
33 |
|
34 |
------------------------------------------------------------------- |
35 |
Package / Vulnerable / Unaffected |
36 |
------------------------------------------------------------------- |
37 |
1 media-gfx/exiftags < 1.01 >= 1.01 |
38 |
|
39 |
Description |
40 |
=========== |
41 |
|
42 |
Meder Kydyraliev (Google Security) discovered that Exif metadata is not |
43 |
properly sanitized before being processed, resulting in illegal memory |
44 |
access in the postprop() and other functions (CVE-2007-6354). He also |
45 |
discovered integer overflow vulnerabilities in the parsetag() and other |
46 |
functions (CVE-2007-6355) and an infinite recursion in the readifds() |
47 |
function caused by recursive IFD references (CVE-2007-6356). |
48 |
|
49 |
Impact |
50 |
====== |
51 |
|
52 |
An attacker could entice the user of an application making use of |
53 |
exiftags or an application included in exiftags to load an image file |
54 |
with specially crafted Exif tags, possibly resulting in the execution |
55 |
of arbitrary code with the privileges of the user running the |
56 |
application or a Denial of Service. |
57 |
|
58 |
Workaround |
59 |
========== |
60 |
|
61 |
There is no known workaround at this time. |
62 |
|
63 |
Resolution |
64 |
========== |
65 |
|
66 |
All exiftags users should upgrade to the latest version: |
67 |
|
68 |
# emerge --sync |
69 |
# emerge --ask --oneshot --verbose ">=media-gfx/exiftags-1.01" |
70 |
|
71 |
References |
72 |
========== |
73 |
|
74 |
[ 1 ] CVE-2007-6354 |
75 |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6354 |
76 |
[ 2 ] CVE-2007-6355 |
77 |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6355 |
78 |
[ 3 ] CVE-2007-6356 |
79 |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6356 |
80 |
|
81 |
Availability |
82 |
============ |
83 |
|
84 |
This GLSA and any updates to it are available for viewing at |
85 |
the Gentoo Security Website: |
86 |
|
87 |
http://security.gentoo.org/glsa/glsa-200712-17.xml |
88 |
|
89 |
Concerns? |
90 |
========= |
91 |
|
92 |
Security is a primary focus of Gentoo Linux and ensuring the |
93 |
confidentiality and security of our users machines is of utmost |
94 |
importance to us. Any security concerns should be addressed to |
95 |
security@g.o or alternatively, you may file a bug at |
96 |
http://bugs.gentoo.org. |
97 |
|
98 |
License |
99 |
======= |
100 |
|
101 |
Copyright 2007 Gentoo Foundation, Inc; referenced text |
102 |
belongs to its owner(s). |
103 |
|
104 |
The contents of this document are licensed under the |
105 |
Creative Commons - Attribution / Share Alike license. |
106 |
|
107 |
http://creativecommons.org/licenses/by-sa/2.5 |
108 |
-----BEGIN PGP SIGNATURE----- |
109 |
Version: GnuPG v1.4.7 (GNU/Linux) |
110 |
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org |
111 |
|
112 |
iD8DBQFHdlLBuhJ+ozIKI5gRAtz/AJwJMT4Gl3RaLl9RhM3nldvZg1G5GwCfb162 |
113 |
ES9/nzyGoX/7sZHZM/e2VS0= |
114 |
=UvnK |
115 |
-----END PGP SIGNATURE----- |
116 |
-- |
117 |
gentoo-announce@g.o mailing list |