Elog 2.9.0 buffer overflow crash bug ubuntu linux, posted by John Rouillard on Sun Apr 10 01:49:01 2011
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When running openvas (a nessus fork) against elog 2.9.0 I provoked the following crash:
Apr 9 17:32:06 unixland elogd[1300]: POST / HTTP/1.0#015#012Host: unixland.home
#015#012Content-Length: -800#015#012#015#012XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Apr 9 17:32:06 unixland kernel: [664894.491242] elogd[1300]: segfault at b7713d
2e ip 080b6956 sp bf8d5ea0 error 4 in elogd[8048000+96000]
openvas reports that it was testing for CVE-2002-1212 when the crash occurred.
Startup info:
Apr 9 19:35:54 unixland elogd[21584]: elogd 2.9.0 built Apr 9 2011, 17:49:08
Apr 9 19:35:54 unixland elogd[21584]: revision 2411
-- rouilj |
Self Register = 3 doesn't work any longer, posted by Olivier Callot on Wed Apr 13 10:51:34 2011
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With the recent Elog 2.9.0 rev 2412 the Self Register = 3 option doesn't work as expected: The user is immediately allowed to login. This is not what this option was doing, which is to wait for an approval by the administrator. Can this behaviour be restored, or should I change the value of the Self Register flag? Thanks |
Re: Self Register = 3 doesn't work any longer, posted by Stefan Ritt on Fri Apr 15 08:37:21 2011 
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Olivier Callot wrote: |
With the recent Elog 2.9.0 rev 2412 the Self Register = 3 option doesn't work as expected: The user is immediately allowed to login. This is not what this option was doing, which is to wait for an approval by the administrator. Can this behaviour be restored, or should I change the value of the Self Register flag? Thanks
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Are you sure about that (maybe used an older revision of elogd where this indeed was a problem?). The current V2.9.0-2412 gives me this:

If I then log in as the admin user, I see the configuration of the new user, but the account is not activated:

So the user cannot log in. The config file is:
[global]
port = 8080
password file = passwd
smtp host = mail.psi.ch
Self register = 3
Admin user = stefan
[demo1]
Attributes = Project, Category
Can you double check?
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Re: Elog 2.9.0 buffer overflow crash bug ubuntu linux, posted by Stefan Ritt on Fri Apr 15 08:49:26 2011
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> When running openvas (a nessus fork) against elog 2.9.0 I provoked the following crash:
>
> Apr 9 17:32:06 unixland elogd[1300]: POST / HTTP/1.0#015#012Host: unixland.home
> #015#012Content-Length: -800#015#012#015#012XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
> XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
> XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
> XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
> XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
> XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
> XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
>
> Apr 9 17:32:06 unixland kernel: [664894.491242] elogd[1300]: segfault at b7713d
> 2e ip 080b6956 sp bf8d5ea0 error 4 in elogd[8048000+96000]
>
> openvas reports that it was testing for CVE-2002-1212 when the crash occurred.
>
> Startup info:
>
> Apr 9 19:35:54 unixland elogd[21584]: elogd 2.9.0 built Apr 9 2011, 17:49:08
> Apr 9 19:35:54 unixland elogd[21584]: revision 2411
>
> -- rouilj
I haven't tried openvas, but added a check for the negative content-length you have in the request
above in SVN revision 2413. Can you try if it still crashes?
- Stefan |
Re: Self Register = 3 doesn't work any longer, posted by Olivier Callot on Fri Apr 15 11:49:43 2011
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Stefan Ritt wrote: |
Olivier Callot wrote: |
With the recent Elog 2.9.0 rev 2412 the Self Register = 3 option doesn't work as expected: The user is immediately allowed to login. This is not what this option was doing, which is to wait for an approval by the administrator. Can this behaviour be restored, or should I change the value of the Self Register flag? Thanks
|
Are you sure about that (maybe used an older revision of elogd where this indeed was a problem?). The current V2.9.0-2412 gives me this:

If I then log in as the admin user, I see the configuration of the new user, but the account is not activated:

So the user cannot log in. The config file is:
[global]
port = 8080
password file = passwd
smtp host = mail.psi.ch
Self register = 3
Admin user = stefan
[demo1]
Attributes = Project, Category
Can you double check?
|
HI Stefan,
I tried again and confirm the version number. I never got this pannel saying that my request will be processed by an adminstrator. Maybe the installation was incomplete? Is this pannel outside the standard src files? I receive the mail as administrator, but the accout is already valid BEFORE I validate it.
This was working in previous versions, i.e. the entry was not created at all. And login wasn't possible.
We went back to 2.8.0 as the server is regularly crashing with 2.9.0 and we have to keep it alive for our running experiment. We are trying to isolate and reproduce the problem... |
Re: Self Register = 3 doesn't work any longer, posted by Stefan Ritt on Fri Apr 15 12:02:50 2011
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Olivier Callot wrote: |
I tried again and confirm the version number. I never got this pannel saying that my request will be processed by an adminstrator. Maybe the installation was incomplete? Is this pannel outside the standard src files? I receive the mail as administrator, but the accout is already valid BEFORE I validate it.
This was working in previous versions, i.e. the entry was not created at all. And login wasn't possible.
We went back to 2.8.0 as the server is regularly crashing with 2.9.0 and we have to keep it alive for our running experiment. We are trying to isolate and reproduce the problem...
|
Try to use the simple config file, and see what happens there. Maybe it's a config option you use differently in the experiment. If you identify the config option which triggers the problem, I can probably reproduce it and fix it. Concerning crashes of 2.9.0: We have it running stably for our experiments, that's why I released it. But there are major changes since 2.8.0, mainly the Kerberos authentification (actually people from CERN asked for that). So it could be that in your case there are problems I don't see. In that case you have to test with which options in the config file the problems start. If elogd crashes, a stack dump would maybe also be helpful for me. |
Re: elog 2.8.0 as daemon crashes when editing selected threaded list, posted by Mark Bergman on Thu Apr 21 21:06:20 2011
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Mark Bergman wrote: |
I recently upgraded elog from 2.7.8 to 2.8.0 (and moved servers, removed unused logbooks, etc.). I'm now having a problem where elog consistently crashes when attempting to edit multiple entries. This is a very common use case, as we use a "status" field, set to "open" or "closed" to track problems. When a problem is resolved, we will go to the "list" display, set it to "threaded", "select" the thread, and then edit it, to change the status field for all posts in the thread to "closed".
Now, as soon as the "edit" button is clicked, elog crashes. This happens on every thread and logbook that I've tried. The elog logfile itself doesn't show anything useful.
However, if eLog is run with "-v" in place of "-D", it does not crash.
Environment:
CentOS 5.4
eLog 2.8.0 built Aug 5 2010, 12:24:11
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I'm now running eLog 2.9.0 and seeing the same crashes. However, I've got some more information that may be helpful.
The crash seems to be directly related to the order of replies in the thread. For example, in this thread I am replying to the original entry. The original entry has 2 children (the entries are siblings) and no grandchildren.
In our installation, eLog crashes consistently under the following conditions:
go to the "list" display
set it to "threaded"
"select" a thread that has siblings at any generation of replies
choose "edit"
If the selected thread only has one entry at any generation, eLog does not crash.
Here's a horrible attempt at a display of two message threads. Note that in the first example, there are 2 replies at the same generation (siblings)--both the person who responded and the original submitter replied to the initial submission. After that, all replies were to successive generations.
-------------- Causes eLog to Crash ------------------
! Full Name (submitter) module failure
=> Full Name (submitter) Re: module failure
=> Full Name (replier) Re: module failure
=> Full Name (submitter) Re: Re: module failure
=> Full Name (submitter) Re: Re: Re: module failue
------------------------------------------------------
-------------- No eLog Problem ------------------
! Full Name (submitter) Labwide failure of mcc
=> Full Name (replier) Re: Labwide failure of mcc
=> Full Name (submitter) Re: Re: Labwide failure of mcc
=> Full Name (replier) Re: Re: Re: Labwide failure of mcc
------------------------------------------------------
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Re: elog 2.8.0 as daemon crashes when editing selected threaded list, posted by Ryan on Sun May 8 22:33:15 2011
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Mark Bergman wrote: |
Mark Bergman wrote: |
I recently upgraded elog from 2.7.8 to 2.8.0 (and moved servers, removed unused logbooks, etc.). I'm now having a problem where elog consistently crashes when attempting to edit multiple entries. This is a very common use case, as we use a "status" field, set to "open" or "closed" to track problems. When a problem is resolved, we will go to the "list" display, set it to "threaded", "select" the thread, and then edit it, to change the status field for all posts in the thread to "closed".
Now, as soon as the "edit" button is clicked, elog crashes. This happens on every thread and logbook that I've tried. The elog logfile itself doesn't show anything useful.
However, if eLog is run with "-v" in place of "-D", it does not crash.
Environment:
CentOS 5.4
eLog 2.8.0 built Aug 5 2010, 12:24:11
|
I'm now running eLog 2.9.0 and seeing the same crashes. However, I've got some more information that may be helpful.
The crash seems to be directly related to the order of replies in the thread. For example, in this thread I am replying to the original entry. The original entry has 2 children (the entries are siblings) and no grandchildren.
In our installation, eLog crashes consistently under the following conditions:
go to the "list" display
set it to "threaded"
"select" a thread that has siblings at any generation of replies
choose "edit"
If the selected thread only has one entry at any generation, eLog does not crash.
Here's a horrible attempt at a display of two message threads. Note that in the first example, there are 2 replies at the same generation (siblings)--both the person who responded and the original submitter replied to the initial submission. After that, all replies were to successive generations.
-------------- Causes eLog to Crash ------------------
! Full Name (submitter) module failure
=> Full Name (submitter) Re: module failure
=> Full Name (replier) Re: module failure
=> Full Name (submitter) Re: Re: module failure
&nb sp; => Full Name (submitter) Re: Re: Re: module failue
------------------------------------------------------
-------------- No eLog Problem ------------------
! Full Name (submitter) Labwide failure of mcc
=> Full Name (replier) Re: Labwide failure of mcc
=> Full Name (submitter) Re: Re: Labwide failure of mcc
&nb sp; => Full Name (replier) Re: Re: Re: Labwide failure of mcc
------------------------------------------------------
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I am also experiencing the same exact problem as explained above. It only seems to happen when a part of the title has changed. I will include my config for an example. Make a few entries, then change the "Customer" paramater. Then try and edit an entry in the thread.
Enable attachments = 1
Attributes = Employee, Customer, XXX-ID, XXXX Number, SCD, Type, Status, Folder Created, XXXX Received, Equipment Installed, XXX Carrier Up, Customer Carrier Up, QA Completed
Thread display = $Customer - $SLR-ID - $Type - $Status - SCD: $SCD - XXXX: $XXXX Number
Propagate attributes = Status
Locked Attributes = Employee
Options Type = Activation, Termination, Change
Options Folder Created = Yes, No, N/A
Options XXXX Received = Yes, No, N/A
Options Equipment Installed = Yes, No, N/A
Options XXX Carrier Up = Yes, No, N/A
Options Customer Carrier Up = Yes, No, N/A
Options QA Completed = Yes, No
Entries per page = 100
Preset Text = $short_name @ $utcdate -
Append on reply = $short_name @ $utcdate -
Locked Attributes = Employee
Preset Employee = $long_name
Options Status = Open, Closed
Quick Filter = Status, Type
Type SCD = datetime
Summary lines = 0
Enable Attachments = 0
Suppress default = 2
Entries per page = 10
Suppress Email to users = 1
Display mode = threaded
Collapse to last = 1
Expand default = 0
Subst on reply Employee = $long_name
Faulting application elogd.exe, version 0.0.0.0, faulting module elogd.exe, version 0.0.0.0, fault address 0x000646c7. |
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