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Intelligence Center » Browse All Vulnerabilities » CVE-2001-1244

Overview

Vulnerability Score 5.0 5.0
CVE Id CVE-2001-1244
Last Modified 05 Sep 2008 04:26:03
Published 07 Jul 2001 12:00:00
Confidentiality Impact NONE NONE
Integrity Impact NONE NONE
Availability Impact PARTIAL PARTIAL
Access Vector NETWORK
Access Complexity LOW
Authentication NONE

CVE-2001-1244

Summary

Multiple TCP implementations could allow remote attackers to cause a denial of service (bandwidth and CPU exhaustion) by setting the maximum segment size (MSS) to a very small number and requesting large amounts of data, which generates more packets with less TCP-level data that amplify network traffic and consume more server CPU to process.

Vulnerable Systems

Operating System

  • Freebsd 4.3

  • Hp Vvos 11.04

  • Hp-ux 11.0.4

  • Hp-ux 11.00

  • Hp-ux 11.11

  • Linux Kernel 2.4.0

  • Linux Kernel 2.4.1

  • Linux Kernel 2.4.2

  • Linux Kernel 2.4.3

  • Linux Kernel 2.4.4

  • Linux Kernel 2.4.5

  • Microsoft Windows 2000

  • Microsoft Windows Nt 4.0

  • Netbsd 1.5

  • Netbsd 1.5.1

  • Openbsd 2.8

  • Openbsd 2.9

  • Sun Solaris 2.5.1

  • Sun Solaris 7.0

  • Sun Solaris 8.0


References

XF - tcp-mss-dos(6824)

BID - 2997

BUGTRAQ - 20010708 Small TCP packets == very large overhead == DoS?


Last Updated: 27 May 2016 10:36:35