Bug 821431 - (CVE-2007-2195) CVE-2007-2195 amsn: DoS (client crash) via sending invalid data to TCP port 31337
CVE-2007-2195 amsn: DoS (client crash) via sending invalid data to TCP port 3...
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
: Security
Depends On:
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Reported: 2012-05-14 09:08 EDT by Jan Lieskovsky
Modified: 2012-05-14 09:21 EDT (History)
1 user (show)

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Description Jan Lieskovsky 2012-05-14 09:08:35 EDT
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. 

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

[4] http://www.securityfocus.com/data/vulnerabilities/exploits/23583.c
Comment 1 Jan Lieskovsky 2012-05-14 09:21:17 EDT
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:

      "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

      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.

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