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4.6

Debian Linux fsh daemon lets local users overwrite others' files

CVE-2000-1135 · published 25 years ago
Summary

The fsh daemon that runs on Debian Linux can be tricked by a local user into replacing files belonging to other users through a symbolic link trick. This could let an attacker modify or delete important data owned by someone else on the same system. Apply the latest security update for the fsh package or remove the daemon if it is not needed.

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
debian debian_linux 2.1
2.2
cpe:2.3:o:debian:debian_linux:2.1:*:*:*:*:*:*:*
Original advisory text
fshd (fsh daemon) in Debian GNU/Linux allows local users to overwrite files of other users via a symlink attack.
fshd (fsh daemon) in Debian GNU/Linux allows local users to overwrite files of other users via a symlink attack.
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
4.6 Medium
Exploitation
<1% chance of attack within 30 days
Timeline
Published9 Jan 2001
Updated4 Nov 2026
First seen29 Sep 2026
Sources
CVE-2000-1135 · NVD
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