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Category:   Application (Instant Messaging/IRC/Chat)  >   Irssi Vendors:
Irssi Underflow in event_wallops() Lets Remote Users Deny Service
SecurityTracker Alert ID:  1022410
SecurityTracker URL:
CVE Reference:   CVE-2009-1959   (Links to External Site)
Date:  Jun 16 2009
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  Exploit Included:  Yes  
Version(s): 0.8.13
Description:   A vulnerability was reported in Irssi. A remote user can cause denial of service conditions.

A remote server can send a specially crafted (empty) command to the connected client to trigger an off-by-one underflow and cause the target client to crash.

The vulnerability resides in the event_wallops() function in 'fe-common/irc/fe-events.c'.

The original advisory is available at:

xorl reported this vulnerability.

Impact:   A remote server can cause the connected client to crash.
Solution:   The vendor has issued a source code fix (r5068).
Vendor URL: (Links to External Site)
Cause:   Boundary error
Underlying OS:  Linux (Any), UNIX (Any)

Message History:   None.

 Source Message Contents

[Original Message Not Available for Viewing]

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