CVE-2003-0643

CVE-2003-0643 is a low-severity vulnerability in Linux Linux Kernel with a CVSS 2.0 base score of 2.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Description

Integer signedness error in the Linux Socket Filter implementation (filter.c) in Linux 2.4.3-pre3 to 2.4.22-pre10 allows attackers to cause a denial of service (crash).

Frequently asked questions

What is CVE-2003-0643?
Integer signedness error in the Linux Socket Filter implementation (filter.c) in Linux 2.4.3-pre3 to 2.4.22-pre10 allows attackers to cause a denial of service (crash).
How severe is CVE-2003-0643?
CVE-2003-0643 has a CVSS 2.0 base score of 2.1, rated low severity.
Is CVE-2003-0643 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2003-0643?
CVE-2003-0643 primarily affects Linux Linux Kernel. In total, 39 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2003-0643?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2003-0643 published?
CVE-2003-0643 was published on 2003-07-25 and last updated on 2026-06-16.

References

Affected products (39)

More vulnerabilities in Linux Linux Kernel

All CVEs affecting Linux Linux Kernel →