CVE-2004-0592: n/a vulnerability

CVE-2004-0592: The tcp_find_option function of the netfilter subsystem for IPv6 in the SUSE Linux 2.6.5 kernel with USAGI...

The tcp_find_option function of the netfilter subsystem for IPv6 in the SUSE Linux 2.6.5 kernel with USAGI patches, when using iptables and TCP options rules, allows remote attackers to cause a denial of service (CPU consumption by infinite loop) via a large option length that produces a negative integer after a casting operation to the char type, a similar flaw to CVE-2004-0626.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 8, 2024, 00:24 UTC (UTC+00:00)

Security readout for executives and security teams

CVE-2004-0592 is a denial-of-service flaw in a specific SUSE Linux 2.6.5 kernel IPv6 netfilter path. If affected systems use iptables TCP options rules, crafted network traffic could force excessive CPU use through an infinite loop. Exposure appears limited to legacy SUSE Linux 2.6.5 systems with USAGI patches, IPv6 netfilter, iptables, and TCP options rules. The provided CVE data does not identify broader affected products or versions. Treat this as a legacy-platform exposure issue. It is not broadly evidenced as actively exploited, but affected internet-facing packet filters could suffer service disruption if still running obsolete SUSE kernels. Mitigation focus: Review SUSE-SA:2004:020 and apply the vendor-recommended kernel update or replacement.; Inventory any legacy SUSE Linux 2.6.5 systems with USAGI patches.; Reduce exposure of affected IPv6 packet-filtering paths where operationally possible..

Prepared: Jun 29, 2026, 15:05 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Jan 23, 2006, 20:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors

0Timeline events

0ADP providers

2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
linux-kernel-tcpfindoption-dos(43137)CVE reference · vdb-entry, x_refsource_XF

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

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