CVE catalog

CVE-2003-0251

nis: CVE-2003-0251

Severity: Medium
Published: Jun 25, 2003, 12:32:00 PM UTC
Source: [NVD] · [CVE record]
EPSS: 2.69% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	nis	sid	`4.5`	fixed
Debian	nis	forky	`4.5`	fixed
Debian	nis	trixie	`4.5`	fixed
Debian	nis	bookworm	`4.5`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	nis	source	sid	`3.11`	not yet assigned	Not reported	Not reported
Debian	nis	source	forky	`3.11`	not yet assigned	Not reported	Not reported
Debian	nis	source	trixie	`3.11`	not yet assigned	Not reported	Not reported
Debian	nis	source	bookworm	`3.11`	not yet assigned	Not reported	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[nis]Fixed
Details (2)
- 4.5 · all · bookworm
  Fixed · Fixed: 3.11
  dsa · nis · debian · bookworm; dsa · nis · debian · 12
- 4.5 · all · bookworm
  Fixed · Fixed: 3.11
  dsa · nis · debian · bookworm; dsa · nis · debian · 12

[Debian 13 (Trixie)]

[nis]Fixed
Details (2)
- 4.5 · all · trixie
  Fixed · Fixed: 3.11
  dsa · nis · debian · 13
- 4.5 · all · trixie
  Fixed · Fixed: 3.11
  dsa · nis · debian · 13

Observed: Oct 23, 2026, 5:02:16 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]