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 Post subject: Security updates
PostPosted: Tue Apr 29, 2014 3:13 am 
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New UberStudent User
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Joined: Wed Nov 27, 2013 12:59 am
Posts: 8
Hi Stephen,
Just got this warning in my mail and wondered to what extent UberStudent is being updated by:
1. You ! :-)
2. Ubuntu
3. Auto update in UberStudent

http://tinyurl.com/mfdmudf
It even refers to Linux! :shock:

Guess I'm a bit complacent and should get it together better.....
But tend to rely on you/Uberstudent these days as my brain is finding even simple things more difficult since my last stroke.
My next "big" project is to instal XP into VBox on my currently 100% UberStudent machine!
Nobody else seems to have much trouble...... :oops:

Cheers!


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 Post subject: Re: Security updates
PostPosted: Wed Apr 30, 2014 12:46 am 
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Joined: Sun Nov 11, 2012 8:54 am
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4.0 is nearing completion.

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 Post subject: Re: Security updates
PostPosted: Wed Apr 30, 2014 4:49 am 
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Established UberStudent User
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Joined: Thu Sep 19, 2013 3:34 am
Posts: 18
Stephen Ewen wrote:
4.0 is nearing completion.

Hi Stephen,
Good News!
But I was really referring to "safety" updates like the one mentioned in my post, covering discovered loopholes.
Can I presume that the auto-updates whenever I start up do take care of that?

Cheers!


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 Post subject: Re: Flash Vulnerability
PostPosted: Fri May 02, 2014 12:41 pm 
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UberStudent Staff
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Joined: Mon Jan 21, 2013 7:18 pm
Posts: 109
jack j rigby wrote:
Can I presume that the auto-updates whenever I start up do take care of that?

Adobe Flash Player is a binary blob that users add to their Linux installation to enable the viewing of web content that is in the proprietary Flash format, but as it is a "foreign" binary blob it is not really a part of the open source software ecosystem. This proprietary "foreignness" is a complication against automatic updates. As such, for a zero-day vulnerability in a foreign binary blob like the CVE-2014-0515 Flash vulnerability, you are better off updating your Flash Player yourself.

1. To update your Adobe Flash Player in Linux, start by browsing to get.adobe.com/flashplayer and downloading the install_flash_player_11_linux.x86_64.tar.gz tarball file. If you then open that downloaded tarball file with Archive Manager you will see a file called libflashplayer.so; this is the binary blob that we need. Then hit F12 to bring down the Guake terminal. Navigate to the directory to which you downloaded that tarball file. (Chromium downloads to the /home/username/Downloads folder.)

username@uberstudent:~$ cd Downloads

2. Extract that updated binary blob from the tarball file...

username@uberstudent:~/Downloads$ tar -xf install_flash_player_11_linux.x86_64.tar.gz libflashplayer.so

3. Find where the old libflashplayer.so file resides...

username@uberstudent:~/Downloads$ find / libflashplayer 2> /dev/null | grep libflashplayer.so
/usr/lib/adobe-flashplugin/libflashplayer.so
/home/username/Downloads/libflashplayer.so


Note that you see the locations for both versions of libflashplayer.so.

4. Navigate to the /usr/lib/adobe-flashplugin directory, then rename the old file...

username@uberstudent:~/Downloads$ cd /usr/lib/adobe-flashplugin
username@uberstudent:~/Downloads$ sudo mv libflashplayer.so libflashplayer.so.old


5. Move the updated libflashplayer.so file to the old one's former location...

username@uberstudent:~/Downloads$ sudo mv /home/username/Downloads/libflashplayer.so ./

6. Observe that the ownership of the new file is wrong, and correct it...

username@uberstudent:/usr/lib/adobe-flashplugin$ ls -l libflashplayer.so*
-rw-r--r-- 1 username username 19234224 Apr 18 19:15 libflashplayer.so
-rw-r--r-- 1 root root 19233136 Dec 17 12:07 libflashplayer.so.old
username@uberstudent:/usr/lib/adobe-flashplugin$ sudo chown root:root libflashplayer.so


Adobe Flash Player is now updated.

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