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Unrated severityNVD Advisory· Published Jul 7, 2001· Updated Jun 16, 2026

CVE-2001-1244

CVE-2001-1244

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

29
  • FreeBSD/FreeBSD
    cpe:2.3:o:freebsd:freebsd:4.3:*:*:*:*:*:*:*
  • Microfocus/Hpux3 versions
    cpe:2.3:o:hp:hp-ux:11.00:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:o:hp:hp-ux:11.00:*:*:*:*:*:*:*
    • cpe:2.3:o:hp:hp-ux:11.0.4:*:*:*:*:*:*:*
    • cpe:2.3:o:hp:hp-ux:11.11:*:*:*:*:*:*:*
  • Microfocus/Vvos
    cpe:2.3:o:hp:vvos:11.04:*:*:*:*:*:*:*
  • Linux/Kernel6 versions
    cpe:2.3:o:linux:linux_kernel:2.4.0:*:*:*:*:*:*:*+ 5 more
    • cpe:2.3:o:linux:linux_kernel:2.4.0:*:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:2.4.1:*:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:2.4.2:*:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:2.4.3:*:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:2.4.4:*:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:2.4.5:*:*:*:*:*:*:*
  • Microsoft/Windows 20003 versions
    cpe:2.3:o:microsoft:windows_2000:*:sp1:*:*:*:*:*:*+ 2 more
    • cpe:2.3:o:microsoft:windows_2000:*:sp1:*:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_2000:*:sp2:*:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_2000:*:*:workstation:*:*:*:*:*
  • Microsoft/Windows Nt8 versions
    cpe:2.3:o:microsoft:windows_nt:4.0:*:*:*:*:*:*:*+ 7 more
    • cpe:2.3:o:microsoft:windows_nt:4.0:*:*:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_nt:4.0:sp1:*:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_nt:4.0:sp2:*:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_nt:4.0:sp3:*:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_nt:4.0:sp4:*:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_nt:4.0:sp5:*:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_nt:4.0:sp6:*:*:*:*:*:*
    • cpe:2.3:o:microsoft:windows_nt:4.0:sp6a:*:*:*:*:*:*
  • NetBSD/NetBSD2 versions
    cpe:2.3:o:netbsd:netbsd:1.5:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:netbsd:netbsd:1.5:*:*:*:*:*:*:*
    • cpe:2.3:o:netbsd:netbsd:1.5.1:*:*:*:*:*:*:*
  • OpenBSD/OpenBSD2 versions
    cpe:2.3:o:openbsd:openbsd:2.8:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:openbsd:openbsd:2.8:*:*:*:*:*:*:*
    • cpe:2.3:o:openbsd:openbsd:2.9:*:*:*:*:*:*:*
  • Sun Corporation/Sunos3 versions
    cpe:2.3:o:sun:sunos:5.5.1:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:o:sun:sunos:5.5.1:*:*:*:*:*:*:*
    • cpe:2.3:o:sun:sunos:5.7:*:*:*:*:*:*:*
    • cpe:2.3:o:sun:sunos:5.8:*:*:*:*:*:*:*

Patches

Vulnerability mechanics

References

3

News mentions

0

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