TFTP Server SP error message buffer overflow

tftpserversp-errormessage-bo (42298) The risk level is classified as HighHigh Risk

Description:

TFTP Server SP is vulnerable to a stack-based and BSS-based buffer overflow, caused by improper bounds checking when handing error messages. By sending a specially-crafted TFTP error packet containing an overly long error message to UDP port 69, a remote attacker could overflow a buffer and execute arbitrary code on the system with elevated privileges or cause the application to crash.

Platforms Affected:

  • SourceForge, TFTP Server 1.4
  • SourceForge, TFTP Server 1.5

Remedy:

No remedy available as of August 23, 2008.

Consequences:

Gain Access

References:

  • SourceForge.net, TFTP Server at http://sourceforge.net/projects/tftp-server/.
  • BID-29111: TFTP Server Error Packet Handling Remote Buffer Overflow Vulnerability
  • CVE-2008-2161: Buffer overflow in TFTP Server SP 1.4 and 1.5 on Windows, and possibly other versions, allows remote attackers to execute arbitrary code via a long TFTP error packet. NOTE: some of these details are obtained from third party information.
  • FrSIRT/ADV-2008-1468: TFTP Server SP Error Message Handling Buffer Overflow Vulnerability
  • SA30147: TFTP Server SP Long Error Message Buffer Overflow

Reported:

May 08, 2008

The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

Copyright (c) 1994-2008 Internet Security Systems, Inc. All rights reserved worldwide.

For corrections or additions please email xforce@iss.net

Return to the main page