#VU94814 Resource exhaustion in Linux kernel - CVE-2003-0364

Vulnerability identifier: #VU94814

Vulnerability risk: Low

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2003-0364

CWE-ID: CWE-400

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

The vulnerability allows a remote non-authenticated attacker to perform service disruption.

The TCP/IP fragment reassembly handling in the Linux kernel 2.4 allows remote attackers to cause a denial of service (CPU consumption) via certain packets that cause a large number of hash table collisions.

Mitigation
Install update from vendor's repository.

Vulnerable software versions

Linux kernel: All versions

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External links
https://www.debian.org/security/2003/dsa-311
https://www.debian.org/security/2003/dsa-312
https://www.debian.org/security/2003/dsa-332
https://www.debian.org/security/2003/dsa-336
https://www.debian.org/security/2004/dsa-442
https://www.redhat.com/support/errata/RHSA-2003-187.html
https://www.redhat.com/support/errata/RHSA-2003-195.html
https://www.redhat.com/support/errata/RHSA-2003-198.html
https://www.turbolinux.com/security/TLSA-2003-41.txt
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A295

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.