| 1 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 2 |
Gentoo Linux Security Advisory GLSA 200411-21 |
| 3 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 4 |
http://security.gentoo.org/ |
| 5 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 6 |
|
| 7 |
Severity: Normal |
| 8 |
Title: Samba: Remote Denial of Service |
| 9 |
Date: November 11, 2004 |
| 10 |
Bugs: #70429 |
| 11 |
ID: 200411-21 |
| 12 |
|
| 13 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 14 |
|
| 15 |
Synopsis |
| 16 |
======== |
| 17 |
|
| 18 |
An input validation flaw in Samba may allow a remote attacker to cause |
| 19 |
a Denial of Service by excessive consumption of CPU cycles. |
| 20 |
|
| 21 |
Background |
| 22 |
========== |
| 23 |
|
| 24 |
Samba is a freely available SMB/CIFS implementation which allows |
| 25 |
seamless interoperability of file and print services to other SMB/CIFS |
| 26 |
clients. |
| 27 |
|
| 28 |
Affected packages |
| 29 |
================= |
| 30 |
|
| 31 |
------------------------------------------------------------------- |
| 32 |
Package / Vulnerable / Unaffected |
| 33 |
------------------------------------------------------------------- |
| 34 |
1 net-fs/samba < 3.0.8 >= 3.0.8 |
| 35 |
< 3.0 |
| 36 |
|
| 37 |
Description |
| 38 |
=========== |
| 39 |
|
| 40 |
An input validation flaw exists in ms_fnmatch.c when matching filenames |
| 41 |
that contain wildcards. |
| 42 |
|
| 43 |
Impact |
| 44 |
====== |
| 45 |
|
| 46 |
A remote attacker may be able to cause an abnormal consumption of CPU |
| 47 |
resources, resulting in slower performance of the server or even a |
| 48 |
Denial of Service. |
| 49 |
|
| 50 |
Workaround |
| 51 |
========== |
| 52 |
|
| 53 |
There is no known workaround at this time. |
| 54 |
|
| 55 |
Resolution |
| 56 |
========== |
| 57 |
|
| 58 |
All Samba users should upgrade to the latest version: |
| 59 |
|
| 60 |
# emerge --sync |
| 61 |
# emerge --ask --oneshot --verbose ">=net-fs/samba-3.0.8" |
| 62 |
|
| 63 |
References |
| 64 |
========== |
| 65 |
|
| 66 |
[ 1 ] Samba Security Announcement |
| 67 |
http://www.samba.org/samba/security/CAN-2004-0930.html |
| 68 |
[ 2 ] CAN-2004-0930 |
| 69 |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0930 |
| 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-200411-21.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 2004 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. |
Archives