CVE-2001-1244
First published: Sat Jul 07 2001(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Windows NT | =4.0 | |
| OpenBSD | =2.8 | |
| HPE HP-UX | =11.11 | |
| Microsoft Windows NT | =4.0-sp2 | |
| NetBSD NetBSD | =1.5 | |
| OpenBSD | =2.9 | |
| Sun SunOS | =5.7 | |
| Sun SunOS | =5.8 | |
| Microsoft Windows 2000 | =sp2 | |
| Microsoft Windows NT | =4.0-sp1 | |
| Microsoft Windows NT | =4.0-sp4 | |
| Microsoft Windows 2000 | ||
| HPE HP-UX | =11.00 | |
| Microsoft Windows NT | =4.0-sp6a | |
| NetBSD NetBSD | =1.5.1 | |
| Linux Kernel | =2.4.0 | |
| Linux Kernel | =2.4.2 | |
| HPE HP-UX | =11.0.4 | |
| Microsoft Windows NT | =4.0-sp6 | |
| Microsoft Windows 2000 | =sp1 | |
| HP Virtual Voice Overhead System | =11.04 | |
| Linux Kernel | =2.4.5 | |
| Sun SunOS | =5.5.1 | |
| FreeBSD FreeBSD | =4.3 | |
| Linux Kernel | =2.4.3 | |
| Linux Kernel | =2.4.1 | |
| Linux Kernel | =2.4.4 | |
| Microsoft Windows NT | =4.0-sp3 | |
| Microsoft Windows NT | =4.0-sp5 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2001-1244?
CVE-2001-1244 is considered a high severity vulnerability due to its potential to cause denial of service by exhausting bandwidth and CPU resources.
How do I fix CVE-2001-1244?
To fix CVE-2001-1244, you should update your TCP/IP stack and monitor your network traffic for unusual patterns that may exploit this vulnerability.
Which operating systems are affected by CVE-2001-1244?
CVE-2001-1244 affects multiple operating systems including Microsoft Windows NT, OpenBSD, HP-UX, and various versions of Linux and SunOS.
What type of attack does CVE-2001-1244 enable?
CVE-2001-1244 enables remote attackers to perform denial of service attacks by manipulating the maximum segment size (MSS) in TCP connections.
Is there any known exploit for CVE-2001-1244?
Yes, there are known exploits for CVE-2001-1244 that leverage small MSS values to generate excessive TCP traffic, leading to denial of service.
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- vendor/netbsd
- canonical/netbsd netbsd
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- version/openbsd/2.9
- vendor/sun
- canonical/sun sunos
- version/sun sunos/5.7
- version/sun sunos/5.8
- canonical/microsoft windows 2000
- version/microsoft windows 2000/sp2
- version/microsoft windows nt/4.0-sp1
- version/microsoft windows nt/4.0-sp4
- version/hpe hp-ux/11.00
- version/microsoft windows nt/4.0-sp6a
- version/netbsd netbsd/1.5.1
- vendor/linux
- canonical/linux kernel
- version/linux kernel/2.4.0
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- version/hpe hp-ux/11.0.4
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