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CVE-2003-0364

16
FAUCET Score

CVE-2003-0364 describes a denial-of-service vulnerability in the Linux kernel 2.4, specifically affecting its TCP/IP fragment reassembly handling, with Red Hat Linux being an identified affected product. An unauthenticated remote attacker can exploit this by sending specially crafted packets that cause numerous hash table collisions, leading to high CPU consumption. This vulnerability has a CVSS score of 5.0, indicating a medium severity with low attack complexity and potential for partial availability impact. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
7.1CPE matchmatch criteria
cpe:2.3:o:redhat:linux:7.1:*:*:*:*:*:*:*
7.2CPE matchmatch criteria
cpe:2.3:o:redhat:linux:7.2:*:*:*:*:*:*:*
7.3CPE matchmatch criteria
cpe:2.3:o:redhat:linux:7.3:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:redhat:linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:redhat:linux:9.0:*:*:*:*:*:*:*

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
3.54%
Probability of exploitation in next 30 days
EPSS Percentile
88.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0354 is in the 84th percentile among its peer group of 23,705 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 (10)

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 7.2
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 7.3
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 8.0
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux 9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Linux Advanced Workstation 2.1
View patch

Vendor Advisories (1)

redhatCVE-2003-0364Important

security flaw

Jun 3, 2003

References

oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A295
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
redhat.com / support/errata/RHSA-2003-187.html
PatchVendor Advisory
redhat.com / support/errata/RHSA-2003-195.html
redhat.com / support/errata/RHSA-2003-198.html
turbolinux.com / security/TLSA-2003-41.txt
Vendor Advisory