Re: [Haskell-cafe] HEADS-UP: security fix, please upgrade clientsession to >= 0.7.3.1

2011-10-03 Thread Felipe Almeida Lessa
On Mon, Oct 3, 2011 at 10:01 AM, Felipe Almeida Lessa wrote: > With a timing attack a malicious user may be able to construct a valid > MAC for his message.  However, the attacker is not able to recover the > MAC key or the encryption key.  So you don't need to change your keys, > just upgrade ASA

[Haskell-cafe] HEADS-UP: security fix, please upgrade clientsession to >= 0.7.3.1

2011-10-03 Thread Felipe Almeida Lessa
Hello! Please be advised that clientsession < 0.7.3.1 is vulnerable to timing attacks [1]. We have just released a fix and it's already on Hackage [2]. We advise all users of clientsession (and, consequently, Yesod) to upgrade as soon as possible to a version >= 0.7.3.1. With a timing attack a