A vulnerability was found when HTTP pipelining is used. In
some cases, a client might be able to cause a buffer alignment issue and
retrieve uninitialized memory contents that exhibit data from a past
request or session. I want to address sincere congratulations to Charlie
Smurthwaite of aTech Media for the really detailed traces he provided
which made it possible to find the cause of this bug. Every user of
1.5-dev, 1.5.x or 1.6-dev must upgrade to 1.5.14 or latest 1.6-dev
snapshot to fix this issue, or use the backport of the fix provided by
their operating system vendors. CVE-2015-3281 was assigned to this bug.