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Thursday, May 5, 2011

Des produits Adobe sont vulnérables à une faille permettant à une personne malintentionnée d’exécuter du code arbitraire, et prendre ainsi le contrôle de cette machine, à distance et à l’insu de son utilisateur.
Cette vulnérabilité ne dépend pas du système d’exploitation.
Cette vulnérabilité est déjà exploitée pour conduire des attaques, sur internet.
Il convient donc d’être extrêmement vigilant à l’égard des fichiers Flash (.flv, .swf) ou des documents bureautiques (.pdf, .doc, ...) qui peuvent contenir des objets Flash, en particulier lors de la réception intempestive de courriels avec pièces jointes, même si l’expéditeur est connu, et lors de la navigation sur des serveur web présentant d tels contenus.

Les versions vulnérables sont :

- Adobe Flash Player 10.2.x et antérieures sur les systèmes Microsoft Windows, Linux, Oracle Solaris et Google Android ;
- le composant authplay.dll contenu dans les versions 10.0.2 et antérieures de Adobe Acrobat et Reader pour les systèmes Windows et Macintosh.
L’éditeur annonce les dates de mise à disposition de correctifs suivantes :
- 15 avril 2011 pour Adobe Flash Player 10.2.x (tous les systèmes d’exploitation) ;
- semaine du 25 avril 2011 pour Adobe Reader 9.x, pour Windows et MacOS ;
- semaine du 25 avril pour Adobe Reader X (10.0.1) pour MacOS ;
- 14 juin 2011 pour Adobe Reader X (10.0.2) pour Windows.

Conduite à tenir dans l’attente des correctifs de sécurité

Plusieurs bonnes pratiques peuvent aider à vous protéger :
- désactiver par défaut l’interprétation du JavaScript ;
- utiliser un compte avec des droits limités ;
- n’ouvrir que des fichiers provenant de sources vérifiées et sûres ;
- le Protected Mode inclus dans Adobe Reader X réduit les risques d’exploitation de la vulnérabilité.
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Basé sur les documents dévoilés (FCC, T-Mobile…), les photos et les vidéos, un artiste a tenté de réaliser des maquettes du HTC  Dream/T-Mobile G1. Il a pris en compte la taille de l’écran (tactile, 3,7″, 480×320), le clavier QWERTY, sa taille… Il s’agit de l’artiste nommé Neo Carlo Magnon qui a donc imaginer à ce que devrait ressembler le HTC Dream/T-Mobile G1. Petit rappel des rumeurs, ce mobile devrait être lancé le 13 octobre aux États-Unis, chez T-Mobile, sous le nom HTC Dream mais plus probablement T-Mobile G1. En attendant, voilà à quoi devrait ressembler la bête…

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Particularly the line of tiny Eee PCs are very interesting. Considering that a new 2 GByte, 7 inch wide monitor ASUS Eee PC costs only $249, one has to consider this a real competitor to the various e-ink reading devices. Yes, it is heavier with 32 ounces (Sony PRS-505: 9 ounces, Ebookwise-1150: 18 ounces) and its battery life is only 3 hours, but it comes with all other standard features a computer has these days: color screen, USB, WiFi, ethernet connectivity, a keyboard, and an operating system with loads of software and applications to run on. And don't forget it is programmable! Additionally it boots up very quickly and can therefore be turned on and off frequently and rapidly. And its overall size is not larger than your standard 6 x 9 inch paper back. It is conceivable, with a bit of clever engineering, to turn such an Eee PC into a handy ebook reader. What if the screen could be folded all the way to the back to turn it into a tablet-type PC? What if the screen uses a bistable LCD technology like the earlier mentioned Bistable Nematic from Nemoptic? Then this Eee PC could be operated in reading mode where it needs very little power to run. And ultimately once an e-ink type screen becomes cheap why not add such a screen as secondary screen on the outside of the PC? Then one could use it as ebook reader in its closed state and once you need to type something or need the full power of a real computer you open it and are presented with a color screen and keyboard.

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Sony has the distinct advantage of being the first to use the e-ink screen technology that has enabled a huge improvement in ebook readers. Sony's decade long experience with walkmans and other small mobile electronic devices also helps. Their first popular model the PRS 505 (seen on the right) is already the 3rd generation device. The first model was only available in Japan and was called the Librie. About a year later Sony introduced the PRS-500 in the USA. The model PRS-505 is a further improvement of that. This model was introduced in the UK September 3rd 2008. It is therefore also currently the only e-ink based ebook reading device that is available in the USA, Europe and Asia. The latest Sony model is the PRS-600 and PRS-300 discussed further down. 
And most importantly the latest firmware of the PRS-505 adds support for DRM-PDFs (like the one you can read with Adobe Digital Editions) as well as the ePub format. It also supports PDF reflow making better use of the screen area.
This means that overall the PRS-505/300/600 is the best mobile ebook reading device available on the market today. It is sturdy, lightweight, appealing look and feel, good support of secure and unsecured formats, and strikes a good compromise between size and reading area. It is also one of the cheaper ones and can be had new for around $200 for the PRS-300 and around $300 for the PRS-600.
So what are the cons? We have to distinguish between generic problems stemming from the e-ink screen technology, which all other e-ink devices (Kindle, Iliad, Cybook, Mentor, etc.) suffer, too, and deficiencies coming from deliberate design choices by Sony.
 
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