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CVE-2003-0244

16
FAUCET Score

CVE-2003-0244 describes a denial-of-service vulnerability affecting the Linux 2.4 kernel's route cache and Netfilter IP conntrack module. Remote attackers can exploit this by sending packets with forged source addresses, leading to numerous hash table collisions and high CPU consumption. This vulnerability has a CVSS score of 5.0, indicating a medium severity, and can be exploited remotely with low attack complexity, resulting in a partial denial of service. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2.4.0CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:2.4.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
4.28%
Probability of exploitation in next 30 days
EPSS Percentile
90.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0428 is in the 87th percentile among its peer group of 23,701 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (6)

debianpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux AS (Advanced Server) version 2.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux ES version 2.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux WS version 2.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux Advanced Workstation 2.1
View patch

Vendor Advisories (1)

redhatCVE-2003-0244Important

security flaw

Apr 5, 2003

References

archives.neohapsis.com / archives/vulnwatch/2003-q2/0073.html
marc.info
marc.info
marc.info
exchange.xforce.ibmcloud.com / vulnerabilities/15382
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A261
debian.org / security/2003/dsa-311
PatchVendor Advisory
debian.org / security/2003/dsa-312
debian.org / security/2003/dsa-332
debian.org / security/2003/dsa-336
debian.org / security/2004/dsa-442
enyo.de / fw/security/notes/linux-dst-cache-dos.html
mandriva.com / security/advisories
mandriva.com / security/advisories
redhat.com / support/errata/RHSA-2003-145.html
PatchVendor Advisory
redhat.com / support/errata/RHSA-2003-147.html
redhat.com / support/errata/RHSA-2003-172.html
secunia.com / advisories/8786
securityfocus.com / bid/7601