| 1 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 2 |
Gentoo Linux Security Advisory GLSA 200611-25 |
| 3 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 4 |
http://security.gentoo.org/ |
| 5 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 6 |
|
| 7 |
Severity: Normal |
| 8 |
Title: OpenLDAP: Denial of Service vulnerability |
| 9 |
Date: November 28, 2006 |
| 10 |
Bugs: #154349 |
| 11 |
ID: 200611-25 |
| 12 |
|
| 13 |
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 14 |
|
| 15 |
Synopsis |
| 16 |
======== |
| 17 |
|
| 18 |
A flaw in OpenLDAP allows remote unauthenticated attackers to cause a |
| 19 |
Denial of Service. |
| 20 |
|
| 21 |
Background |
| 22 |
========== |
| 23 |
|
| 24 |
OpenLDAP is a suite of LDAP-related applications and development tools. |
| 25 |
|
| 26 |
Affected packages |
| 27 |
================= |
| 28 |
|
| 29 |
------------------------------------------------------------------- |
| 30 |
Package / Vulnerable / Unaffected |
| 31 |
------------------------------------------------------------------- |
| 32 |
1 net-nds/openldap < 2.3.27-r3 >= 2.3.27-r3 |
| 33 |
*>= 2.2.28-r5 |
| 34 |
*>= 2.1.30-r8 |
| 35 |
|
| 36 |
Description |
| 37 |
=========== |
| 38 |
|
| 39 |
Evgeny Legerov has discovered that the truncation of an incoming |
| 40 |
authcid longer than 255 characters and ending with a space as the 255th |
| 41 |
character will lead to an improperly computed name length. This will |
| 42 |
trigger an assert in the libldap code. |
| 43 |
|
| 44 |
Impact |
| 45 |
====== |
| 46 |
|
| 47 |
By sending a BIND request with a specially crafted authcid parameter to |
| 48 |
an OpenLDAP service, a remote attacker can cause the service to crash. |
| 49 |
|
| 50 |
Workaround |
| 51 |
========== |
| 52 |
|
| 53 |
There is no known workaround at this time. |
| 54 |
|
| 55 |
Resolution |
| 56 |
========== |
| 57 |
|
| 58 |
All OpenLDAP users should upgrade to the latest version: |
| 59 |
|
| 60 |
# emerge --sync |
| 61 |
# emerge --ask --oneshot --verbose "net-nds/openldap" |
| 62 |
|
| 63 |
References |
| 64 |
========== |
| 65 |
|
| 66 |
[ 1 ] CVE-2006-5779 |
| 67 |
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-5779 |
| 68 |
|
| 69 |
Availability |
| 70 |
============ |
| 71 |
|
| 72 |
This GLSA and any updates to it are available for viewing at |
| 73 |
the Gentoo Security Website: |
| 74 |
|
| 75 |
http://security.gentoo.org/glsa/glsa-200611-25.xml |
| 76 |
|
| 77 |
Concerns? |
| 78 |
========= |
| 79 |
|
| 80 |
Security is a primary focus of Gentoo Linux and ensuring the |
| 81 |
confidentiality and security of our users machines is of utmost |
| 82 |
importance to us. Any security concerns should be addressed to |
| 83 |
security@g.o or alternatively, you may file a bug at |
| 84 |
http://bugs.gentoo.org. |
| 85 |
|
| 86 |
License |
| 87 |
======= |
| 88 |
|
| 89 |
Copyright 2006 Gentoo Foundation, Inc; referenced text |
| 90 |
belongs to its owner(s). |
| 91 |
|
| 92 |
The contents of this document are licensed under the |
| 93 |
Creative Commons - Attribution / Share Alike license. |
| 94 |
|
| 95 |
http://creativecommons.org/licenses/by-sa/2.5 |
Archives