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Bug#261521: marked as done (kernel: signal-handler DoS attack possible via userspace fsave and frstor (CAN-2004-0554))



Your message dated Sun, 3 Dec 2006 23:40:44 -0500
with message-id <20061204044044.GA29496@doctormoo.dyndns.org>
and subject line Bug fixed
has caused the attached Bug report 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 I am
talking about this indicates a serious mail system misconfiguration
somewhere.  Please contact me immediately.)

Debian bug tracking system administrator
(administrator, Debian Bugs database)

--- Begin Message ---
Package: kernel-image-2.4.18-1-i686
Version: 2.4.18-13.1

Ref: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0554

"Linux kernel 2.4.2x and 2.6.x for x86 allows local users to cause a
denial of service (system crash), possibly via an infinite loop that
triggers a signal handler with a certain sequence of fsave and frstor
instructions, as originally demonstrated using a "crash.c" program."

According to http://www.securityfocus.com/bid/10566, 2.4.18 is vulnerable.
(I also find that it is, although the CAN only mentions kernels 2.4.2x and
above.)

I can't see that this issue has been resolved, although it has been in
most other distributions for a while.

I apologise if this is in error, but browsing debian.org, including
list archives, for information on status yields nothing.

Regards,
Sigmund Straumsnes


--- End Message ---
--- Begin Message ---
Bug appears to be fixed as of 2.6.8 
according to http://lists.alioth.debian.org/pipermail/kernel-svn-changes/2006-January/004131.html
Closing now

-- 
Nathanael Nerode  <neroden@fastmail.fm>

Read it and weep.
http://rawstory.com/news/2005/Text_of_Gore_speech_0116.html


--- End Message ---

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