CVE-2000-1221
Debian Debian Linux — NVD-CWE-Other
EPSS 12.2%
- Published: 2000-01-08T05:00:00.000
- Last modified: 2025-04-03T01:03:51.193
- Vendors: Debian, Redhat
- Products: Debian Linux, Linux
- CWE: NVD-CWE-Other
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.
Related CVE by CWE
No related CWE found.
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Recently Exploited Similar Vulnerabilities
No recent KEV-listed items for this vendor/product.
How to fix CVE-2000-1221
CVE-2000-1221 is a unknown severity vulnerability affecting Debian Debian Linux.
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. Related CVE by […]
Exploit Difficulty: HARD
⏱️ Time to exploit: > 4 hours
🛠️ Required skills: Advanced security expertise
💰 Public exploits: Rare or not public
How to Fix:
- Check if you're running Debian Linux
- Update to the latest patched version
- If patching is not immediately possible: restrict network exposure, apply least-privilege access
- Test the fix in a staging environment first
- Review logs for signs of exploitation
- Monitor for IOCs (Indicators of Compromise)
- Enable automatic security updates
- Set up vulnerability monitoring
- Review and harden security configurations
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. Related CVE by […]
Exploit Difficulty: HARD
⏱️ Time to exploit: > 4 hours
🛠️ Required skills: Advanced security expertise
💰 Public exploits: Rare or not public
How to Fix:
1 Identify affected systems
- Check if you're running Debian Linux
2 Immediate actions
- Update to the latest patched version
- If patching is not immediately possible: restrict network exposure, apply least-privilege access
3 Verification
- Test the fix in a staging environment first
- Review logs for signs of exploitation
- Monitor for IOCs (Indicators of Compromise)
4 Long-term prevention
- Enable automatic security updates
- Set up vulnerability monitoring
- Review and harden security configurations
CWE: NVD-CWE-Other
Exploit Difficulty Assessment
HARD
Time to Exploit: > 4 hours
Skills Required: Advanced security expertise
Public Exploits: Rare or not public
Vulnerability Timeline
Jan 08, 2000
Vulnerability Published
CVE details first published to NVD database
Apr 03, 2025
Last Modified
CVE details were updated
Nov 03, 2025
Imported to Database
Added to this CVE tracking system
Detection Rules & IOCs
No specific detection rules generated for this vulnerability type.
- 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 []