| 1 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 2 |
Gentoo Linux Security Advisory GLSA 200509-11 |
| 3 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 4 |
http://security.gentoo.org/ |
| 5 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 6 |
|
| 7 |
Severity: Normal |
| 8 |
Title: Mozilla Suite, Mozilla Firefox: Buffer overflow |
| 9 |
Date: September 18, 2005 |
| 10 |
Bugs: #105396 |
| 11 |
ID: 200509-11 |
| 12 |
|
| 13 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 14 |
|
| 15 |
Synopsis |
| 16 |
======== |
| 17 |
|
| 18 |
Mozilla Suite and Firefox are vulnerable to a buffer overflow that |
| 19 |
might be exploited to execute arbitrary code. |
| 20 |
|
| 21 |
Background |
| 22 |
========== |
| 23 |
|
| 24 |
The Mozilla Suite is a popular all-in-one web browser that includes a |
| 25 |
mail and news reader. Mozilla Firefox is the next-generation browser |
| 26 |
from the Mozilla project. They both support Internationalized Domain |
| 27 |
Names (IDN), which are domain names represented by local language |
| 28 |
characters. |
| 29 |
|
| 30 |
Affected packages |
| 31 |
================= |
| 32 |
|
| 33 |
------------------------------------------------------------------- |
| 34 |
Package / Vulnerable / Unaffected |
| 35 |
------------------------------------------------------------------- |
| 36 |
1 www-client/mozilla-firefox <= 1.0.6-r6 >= 1.0.6-r7 |
| 37 |
2 www-client/mozilla <= 1.7.11-r2 >= 1.7.11-r3 |
| 38 |
3 www-client/mozilla-firefox-bin <= 1.0.6-r2 Vulnerable! |
| 39 |
4 www-client/mozilla-bin <= 1.7.11 Vulnerable! |
| 40 |
------------------------------------------------------------------- |
| 41 |
NOTE: Certain packages are still vulnerable. Users should migrate |
| 42 |
to another package if one is available or wait for the |
| 43 |
existing packages to be marked stable by their |
| 44 |
architecture maintainers. |
| 45 |
------------------------------------------------------------------- |
| 46 |
4 affected packages on all of their supported architectures. |
| 47 |
------------------------------------------------------------------- |
| 48 |
|
| 49 |
Description |
| 50 |
=========== |
| 51 |
|
| 52 |
The Mozilla Suite and Firefox are both vulnerable to a buffer overflow |
| 53 |
while processing hostnames containing multiple hyphens. Note that |
| 54 |
browsers that have disabled IDN support are immune to this flaw. |
| 55 |
|
| 56 |
Impact |
| 57 |
====== |
| 58 |
|
| 59 |
A remote attacker could setup a malicious site and entice a victim to |
| 60 |
visit it, triggering the buffer overflow and potentially resulting in |
| 61 |
the execution of arbitrary code with the victim's privileges. |
| 62 |
|
| 63 |
Workaround |
| 64 |
========== |
| 65 |
|
| 66 |
You can disable the IDN support by opening the "about:config" page in |
| 67 |
the browser and manually toggling the "network.IDN" property to |
| 68 |
"false". Alternatively, you can install a security patch by following |
| 69 |
the patching instructions given in References. |
| 70 |
|
| 71 |
Resolution |
| 72 |
========== |
| 73 |
|
| 74 |
All Mozilla Firefox users should upgrade to the latest version: |
| 75 |
|
| 76 |
# emerge --sync |
| 77 |
# emerge --ask --oneshot --verbose |
| 78 |
">=www-client/mozilla-firefox-1.0.6-r7" |
| 79 |
|
| 80 |
All Mozilla Suite users should upgrade to the latest version: |
| 81 |
|
| 82 |
# emerge --sync |
| 83 |
# emerge --ask --oneshot --verbose ">=www-client/mozilla-1.7.11-r3" |
| 84 |
|
| 85 |
There are no fixed Mozilla Firefox or Mozilla Suite binaries yet. Users |
| 86 |
of the mozilla-bin or mozilla-firefox-bin packages should either switch |
| 87 |
to the source-based versions or apply the workaround. |
| 88 |
|
| 89 |
References |
| 90 |
========== |
| 91 |
|
| 92 |
[ 1 ] CAN-2005-2871 |
| 93 |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-2871 |
| 94 |
[ 2 ] Mozilla Foundation patching instructions |
| 95 |
https://addons.mozilla.org/messages/307259.html |
| 96 |
|
| 97 |
Availability |
| 98 |
============ |
| 99 |
|
| 100 |
This GLSA and any updates to it are available for viewing at |
| 101 |
the Gentoo Security Website: |
| 102 |
|
| 103 |
http://security.gentoo.org/glsa/glsa-200509-11.xml |
| 104 |
|
| 105 |
Concerns? |
| 106 |
========= |
| 107 |
|
| 108 |
Security is a primary focus of Gentoo Linux and ensuring the |
| 109 |
confidentiality and security of our users machines is of utmost |
| 110 |
importance to us. Any security concerns should be addressed to |
| 111 |
security@g.o or alternatively, you may file a bug at |
| 112 |
http://bugs.gentoo.org. |
| 113 |
|
| 114 |
License |
| 115 |
======= |
| 116 |
|
| 117 |
Copyright 2005 Gentoo Foundation, Inc; referenced text |
| 118 |
belongs to its owner(s). |
| 119 |
|
| 120 |
The contents of this document are licensed under the |
| 121 |
Creative Commons - Attribution / Share Alike license. |
| 122 |
|
| 123 |
http://creativecommons.org/licenses/by-sa/2.0 |
Archives