Bug 821416 (CVE-2006-0138)

Summary:	CVE-2006-0138 amsn: DoS (client hang, termination of client's IM session) via repeatedly sending crafted data to default file-transfer port
Product:	[Other] Security Response	Reporter:	Jan Lieskovsky <jlieskov>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	sander
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-10 10:58:34 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	821435
Bug Blocks:

Description Jan Lieskovsky 2012-05-14 12:41:08 UTC

Common Vulnerabilities and Exposures assigned an identifier CVE-2006-0138 to the following vulnerability:

aMSN (aka Alvaro's Messenger) allows remote attackers to cause a denial of service (client hang and termination of client's instant-messaging session) by repeatedly sending crafted data to the default file-transfer port (TCP 6891). 

References:
[1] http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-0138
[2] http://www.osvdb.org/22186
[3] https://bugs.gentoo.org/show_bug.cgi?id=415861
[4] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=557754

Reproducer:
[5] http://www.securiteam.com/exploits/5JP090KHFQ.html

Upstream ticket:
[6] http://sourceforge.net/tracker/?func=detail&aid=2921641&group_id=54091&atid=472655

Comment 1 Jan Lieskovsky 2012-05-14 12:45:54 UTC

I have tried to test / reproduce this issue on Fedora-15 / Fedora-16 versions (based on [5]), but unable to reproduce it, because according to aMSN -> Account -> Preferences -> Connection tab -> "File transfer, peer-to-peer and NAT settings" and "Test port" button my connection is:

"You are firewalled or behind a router"

thus running the ./dos.pl from [5] returns 'Connection refused' for me. But since there doesn't seem to be an upstream patch for this issue yet, I would say Fedora-15 and Fedora-16 amsn package versions are still vulnerable to this issue.

Please schedule an update once there is final upstream patch version available.

Comment 2 Jan Lieskovsky 2012-05-14 13:22:23 UTC

Created amsn tracking bugs for this issue

Affects: fedora-all [bug 821435]

Comment 3 Fedora Update System 2012-08-26 00:22:20 UTC

amsn-0.98.9-4.fc17 has been pushed to the Fedora 17 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 4 Product Security DevOps Team 2019-06-10 10:58:34 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.