CVE-2003-0244

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 7.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2003-05-27 · updated 2026-06-16

Description

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.

Affected products

Linux kernel: 2.4.0

References

http://archives.neohapsis.com/archives/vulnwatch/2003-q2/0073.html
http://marc.info/?l=bugtraq&m=105301461726555&w=2
http://marc.info/?l=bugtraq&m=105595901923063&w=2
http://marc.info/?l=linux-kernel&m=104956079213417
http://www.debian.org/security/2003/dsa-311
http://www.debian.org/security/2003/dsa-312
http://www.debian.org/security/2003/dsa-332
http://www.debian.org/security/2003/dsa-336
http://www.debian.org/security/2004/dsa-442
http://www.enyo.de/fw/security/notes/linux-dst-cache-dos.html
http://www.mandriva.com/security/advisories?name=MDKSA-2003:066
http://www.mandriva.com/security/advisories?name=MDKSA-2003:074

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