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2.1

Vixie Cron on Gentoo lets local users halt jobs

CVE-2007-1856 · published 19 years ago
Summary

On Gentoo systems, the Vixie Cron program is installed with permissions that are too open. A user who has access to the system can create special links that cause the scheduler to stop working, which means scheduled tasks will no longer run. Update to the latest version of Vixie Cron or reinstall it with the recommended, more restrictive permissions to prevent this from happening.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
paul_vixie vixie_cron <= 4.1
cpe:2.3:a:paul_vixie:vixie_cron:*:*:*:*:*:*:*:*
Original advisory text
Vixie Cron before 4.1-r10 on Gentoo Linux is installed with insecure permissions, which allows local users to cause a denial of service (cron failure) by creating hard links, which results in a fai...
Vixie Cron before 4.1-r10 on Gentoo Linux is installed with insecure permissions, which allows local users to cause a denial of service (cron failure) by creating hard links, which results in a failed st_nlink check in database.c.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit (estimated)
  • Gives an attacker partial control (estimated)
Severity
2.1 Low
Exploitation
<1% chance of attack within 30 days
Timeline
Published18 Apr 2007
Updated4 Nov 2026
First seen29 Sep 2026
Sources
CVE-2007-1856 · NVD
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