Your message dated Wed, 05 Aug 2026 17:31:09 +0000
with message-id <[email protected]>
and subject line Bug#1143544: Removed package(s) from unstable
has caused the Debian Bug report #844584,
regarding dhclient should perform additional validity checks
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
(NB: If you are a system administrator and have no idea what this
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--
844584: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=844584
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: isc-dhcp-client
Version: 4.3.1-6+deb8u2
Severity: serious
File: /sbin/dhclient
Tags: security
https://samy.pl/poisontap/
This is a variation on an ancient "gem" by a DSL Modem vendor
where the router pretends to be the entire internet by spoofing
arp so that it captures all traffic.
The best way to deal with this is to set an upper limit on the
size of acceptable netmask in /etc/default/isc-dhcp-client and
verify it in a hook (which can be debian specific).
This way dhcp reply of 0.0.0.0/0 or anything larger than a class
A will raise a security alert instead of blindly exposing the
machine to a spoofing attack.
-- System Information:
Debian Release: 8.6
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 3.16.0-4-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_GB.utf8, LC_CTYPE=en_GB.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages isc-dhcp-client depends on:
ii debianutils 4.4+b1
ii iproute2 3.16.0-2
ii isc-dhcp-common 4.3.1-6+deb8u2
ii libc6 2.19-18+deb8u6
ii libdns-export100 1:9.9.5.dfsg-9+deb8u7
ii libirs-export91 1:9.9.5.dfsg-9+deb8u7
ii libisc-export95 1:9.9.5.dfsg-9+deb8u7
isc-dhcp-client recommends no packages.
Versions of packages isc-dhcp-client suggests:
pn avahi-autoipd <none>
pn resolvconf <none>
-- no debconf information
--- End Message ---
--- Begin Message ---
Version: 4.4.3-P1-8+rm
Dear submitter,
as the package isc-dhcp has just been removed from the Debian archive
unstable we hereby close the associated bug reports. We are sorry
that we couldn't deal with your issue properly.
For details on the removal, please see https://bugs.debian.org/1143544
The version of this package that was in Debian prior to this removal
can still be found using https://snapshot.debian.org/.
Please note that the changes have been done on the master archive and
will not propagate to any mirrors until the next dinstall run at the
earliest.
This message was generated automatically; if you believe that there is
a problem with it please contact the archive administrators by mailing
[email protected].
Debian distribution maintenance software
pp.
Thorsten Alteholz (the ftpmaster behind the curtain)
--- End Message ---
