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5.0

Ipswitch Collaboration Suite IMAP can be halted by crafted request

CVE-2005-1249 · published 21 years ago
Summary

The email component (IMAPD32.EXE) of Ipswitch Collaboration Suite can be forced to use excessive processing power when it receives a specially formed LSUB command containing many null characters. This can make the service unresponsive, affecting users' ability to access email. Apply the vendor's update or patch to stop the problematic loop and restore normal operation.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
ipswitch ipswitch_collaboration_suite All versions
cpe:2.3:a:ipswitch:ipswitch_collaboration_suite:*:*:*:*:*:*:*:*
Original advisory text
The IMAP daemon (IMAPD32.EXE) in Ipswitch Collaboration Suite (ICS) allows remote attackers to cause a denial of service (CPU consumption) via an LSUB command with a large number of null characters...
The IMAP daemon (IMAPD32.EXE) in Ipswitch Collaboration Suite (ICS) allows remote attackers to cause a denial of service (CPU consumption) via an LSUB command with a large number of null characters, which causes an infinite loop.
References
Fix within
Internet-facing 14 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically (estimated)
  • Gives an attacker partial control (estimated)
Severity
5.0 Medium
Exploitation
5% chance of attack within 30 days
Timeline
Published25 May 2005
Updated24 Oct 2026
First seen29 Sep 2026
Sources
CVE-2005-1249 · NVD
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