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Vulnerability record · CVE-2000-1221 · published 8 January 2000

CVE-2000-1221: Sgi irix vulnerability

Sgi · Irix

The line printer daemon (lpd) in the lpr package in multiple Linux operating systems authenticates by comparing the reverse-resolved hostname of the local machine to the hostname of the print server as returned by gethostname, which allows remote attackers to bypass intended access controls by modifying the DNS for the attacking IP.

10.0 CVSS 2.0 High EPSS 17% · top 3.1%
10.0CVSS 2.0 base score
17%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
16References
16 Jun 2026Last modified by NVD

Description

The line printer daemon (lpd) in the lpr package in multiple Linux operating systems authenticates by comparing the reverse-resolved hostname of the local machine to the hostname of the print server as returned by gethostname, which allows remote attackers to bypass intended access controls by modifying the DNS for the attacking IP.

AV:N/AC:L/Au:N/C:C/I:C/A:C

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
ftp://patches.sgi.com/support/free/security/advisories/20021104-01-P Patch
http://rhn.redhat.com/errata/RHSA-2000-002.html
http://www.atstake.com/research/advisories/2000/lpd_advisory.txt
http://www.debian.org/security/2000/20000109 Patch
http://www.kb.cert.org/vuls/id/30308 US Government Resource
http://www.l0pht.com/advisories/lpd_advisory
http://www.securityfocus.com/bid/927
https://exchange.xforce.ibmcloud.com/vulnerabilities/3840
ftp://patches.sgi.com/support/free/security/advisories/20021104-01-P Patch
http://rhn.redhat.com/errata/RHSA-2000-002.html
http://www.atstake.com/research/advisories/2000/lpd_advisory.txt
http://www.debian.org/security/2000/20000109 Patch
http://www.kb.cert.org/vuls/id/30308 US Government Resource
http://www.l0pht.com/advisories/lpd_advisory
http://www.securityfocus.com/bid/927
https://exchange.xforce.ibmcloud.com/vulnerabilities/3840

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Source: NIST National Vulnerability Database (record CVE-2000-1221), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.