CVE-2003-0244

The route cache implementation in Linux 2.4, and the Netfilter IP conntrack module, allows remote...

5.0 Medium

The route cache implementation in Linux 2.4, and the Netfilter IP conntrack module, allows remote attackers to cause a denial of service (CPU consumption) via packets with forged source addresses that cause a large number of hash table collisions.

Exploit likelihood

7.73%Up 3.4 points since Feb 4, 2022

What each source reports

NVD Score used 5.0

Record: CVE-2003-0244
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Updated: 2026-11-02

CVE List No score

Record: CVE-2003-0244
Updated: 2026-11-02

EUVDEUVD-2003-0239 No score

Record: EUVD-2003-0239
Updated: 2026-11-03

GitHub AdvisoriesGHSA-vrhw-hjvj-3gr3 No score

The route cache implementation in Linux 2.4, and the Netfilter IP conntrack module, allows remote...

Record: GHSA-vrhw-hjvj-3gr3
Updated: 2026-11-02

Affected products

linux kernel

Affected packages

Affected packages
Package	Affected	Fixed
`kernel-source-2.4.18` Debian:3.0 From an advisory covering 8 CVEs	before 2.4.18-9	2.4.18-9
`kernel-image-2.4.18-1-i386` Debian:3.0 From an advisory covering 8 CVEs	before 2.4.18-8	2.4.18-8
`kernel-image-2.4.18-i386bf` Debian:3.0 From an advisory covering 8 CVEs	before 2.4.18-5woody1., plus listed versions 2.4.18-5	2.4.18-5woody1.
`kernel-patch-2.4.18-powerpc` Debian:3.0 From an advisory covering 7 CVEs	before 2.4.18-1woody1	2.4.18-1woody1
`kernel-source-2.4.17` Debian:3.0 From an advisory covering 8 CVEs	before 2.4.17-1woody1	2.4.17-1woody1
`kernel-patch-2.4.17-mips` Debian:3.0 From an advisory covering 8 CVEs	before 2.4.17-0.020226.2.woody2	2.4.17-0.020226.2.woody2
`kernel-source-2.2.20` Debian:3.0 From an advisory covering 9 CVEs	before 2.2.20-5woody2	2.2.20-5woody2
`kernel-image-2.2.20-i386` Debian:3.0 From an advisory covering 9 CVEs	before 2.2.20-5woody3	2.2.20-5woody3
`kernel-patch-2.4.17-s390` Debian:3.0 From an advisory covering 10 CVEs	before 0.0.20020816-0.woody.2	0.0.20020816-0.woody.2
`kernel-image-2.4.17-s390` Debian:3.0 From an advisory covering 10 CVEs	before 2.4.17-2.woody.3	2.4.17-2.woody.3

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2003-0244 is a medium vulnerability (CVSS 5.0) in Linux Kernel, published May 8, 2003. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 7.73%, the 94th percentile. No source names a fixed version.

References

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