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CVE-2003-0251

5.0 · MEDIUM

ypserv NIS server before 2.7 allows remote attackers to cause a denial of service via a TCP client request that does not respond to the server, which causes ypserv to block.

Published Jul 24, 2003nisEPSS 2.69%

Overview

CVE-2003-0251 is a medium-severity vulnerability affecting nis ypserv_nis_server. It was published on July 24, 2003 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

ypserv NIS server before 2.7 allows remote attackers to cause a denial of service via a TCP client request that does not respond to the server, which causes ypserv to block.

Remediation

Check the references section for vendor advisories and patches from nis. Update ypserv_nis_server to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
nisypserv_nis_server0Affected

References

Refsecunia.com/advisories/21112Refsecuritytracker.com/id?1016517Refsunsolve.sun.com/pub-cgi/retrieve.pl?doc=fsalert%2F55600&zone_32=category%3AsecurityRefwww.mandriva.com/security/advisories?name=MDKSA-2003:072Refwww.redhat.com/support/errata/RHSA-2003-173.htmlRefwww.redhat.com/support/errata/RHSA-2003-201.htmlRefwww.securityfocus.com/archive/1/440454/100/0/threadedRefwww.securityfocus.com/bid/8031Refwww.turbolinux.com/security/TLSA-2003-43.txtRefwww.vupen.com/english/advisories/2006/2873

How CyberStrike helps

Frequently asked questions

What is CVE-2003-0251?

CVE-2003-0251 is a medium-severity vulnerability affecting nis ypserv_nis_server. It was published on July 24, 2003 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

How severe is CVE-2003-0251?

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2003-0251?

Check the references section for vendor advisories and patches from nis. Update ypserv_nis_server to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2003-0251?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2003-0251 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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