Bug 821431 (CVE-2007-2195)

Summary:	CVE-2007-2195 amsn: DoS (client crash) via sending invalid data to TCP port 31337
Product:	[Other] Security Response	Reporter:	Jan Lieskovsky <jlieskov>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	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:	2021-10-19 21:52:59 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:

Description Jan Lieskovsky 2012-05-14 13:08:35 UTC

Common Vulnerabilities and Exposures assigned an identifier CVE-2007-2195 to the following vulnerability:

aMSN (aka Alvaro's Messenger) 0.96 and earlier allows remote attackers to cause a denial of service (application crash) by sending invalid data to TCP port 31337. 

References:
[1] http://www.securityfocus.com/bid/23583
[2] http://osvdb.org/39116
[3] http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=557754

Reproducer:
[4] http://www.securityfocus.com/data/vulnerabilities/exploits/23583.c

Comment 1 Jan Lieskovsky 2012-05-14 13:21:17 UTC

I was unable to reproduce this issue based on [4]. Upstream bug report for another (CVE-2006-0138) issue mentions this (CVE-2007-2195) issue doesn't exist anymore:
[5] http://sourceforge.net/tracker/?func=detail&aid=2921641&group_id=54091&atid=472655

But since I have been having issues to reproduce the CVE-2006-0138 issue too:
[6] https://bugzilla.redhat.com/show_bug.cgi?id=821416#c1

someone more familiar with amsn code should have a look at this if it's still an issue or not.

Note: Hard to identify relevant upstream SVN commit. Amsn v0.97 Changelog:
      http://amsn.sourceforge.net/wiki/tiki-index.php?page=ChangeLog

      mentions:
      "Only for amsn-remote,fixed possible DoS attack, and make remote
      not reply to commands when it's not enabled, instead of waiting
      for authentication and parsing commands, which may lead to parse
      errors."

      but I am not sure if this is the fix for CVE-2007-2195 issue.
      If you upon investigation / testing would realize, this issue is
      fixed already, feel free to close this report as invalid / notabug.