On 08/10/2016 03:06 PM, Kevin Fenzi wrote:
On Wed, 10 Aug 2016 11:50:37 -0700
Gordon Messmer <gordon.mess...@gmail.com> wrote:
On 08/09/2016 10:44 PM, Rick Walker wrote:
I'm very skeptical.
Take a look at the pdf linked in the first message. The challenge
ack limit was intended to improve security, but created a
side-channel attack that could allow someone who doesn't control the
communication path to reset connections or insert data on
non-encrypted TCP connections. Until it's fixed, lifting the ACK
limit should reduce the risk.
This was fixed in july in Fedora kernels:
* Tue Jul 12 2016 Josh Boyer <jwbo...@fedoraproject.org> - 4.6.4-201
- CVE-2016-5389 CVE-2016-5969 tcp challenge ack info leak (rhbz 1354708
1355615)
All the more reason to move off from F22, but first I have to wait until
they fix the desktop environment problem...
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