Your message dated Sat, 24 Aug 2024 22:13:42 +0000
with message-id <[email protected]>
and subject line Bug#1079285: Removed package(s) from unstable
has caused the Debian Bug report #970456,
regarding thunderbird enigmail remote DoS and security downgrade by using
signed attachments
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
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact [email protected]
immediately.)
--
970456: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=970456
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: enigmail
Version: 2:2.1.3+ds1-4~deb10u2
Please clasify it as security problem for listed below reasons.
Attacker sends moderatelly-sized message e.g. 10 MB and signs it using
enigmail,
e.g. using the same version of thunderbird with enigmail.
When recipient (the victim) using this version of enigmail on debian stable
opens this message, then thunderbird will freeze for 40 seconds using 100%
of 1 core of the CPU (on 4-core ~2.5 GHz amd64).
This is a remote DoS on the thunderbird.
When ever he selects the message, or opens any attachments on it, each time
thunderbird freezes.
Also each time it consumes vast amounts of RAM (e.g. 100 to 500 MB per
action) of resident size.
If this happens few times, or on already loaded machine, even computer with
reasonable amount of free RAM and swap space, will start OOMing or will
generally hang - which is a broader remote DoS.
Already closing and restarting thunderbird seems to free the memory.
Opening an email with 10 1-MB attachments that is signed using openpgp, can
take for example 10-20 minutes, or can likely crash in middle of it.
This also is a security degrade attack, it causes the user to refrain from
usage of encryption, as it turns out popular email clients fail to handle
it in reasonable manner.
--- End Message ---
--- Begin Message ---
Version: 2:2.2.4-0.3+rm
Dear submitter,
as the package enigmail 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/1079285
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.
Scott Kitterman (the ftpmaster behind the curtain)
--- End Message ---
