View at Official ubuntu advisory, NVD, CVE.org · CVE detail
Freshness: upstream tracker timestamp is available; use API updated time as primary recency signal.
CVE-2015-3281 medium priority: Ubuntu including 1 source packages (haproxy), 5 status rows across 5 suites (precise, trusty, upstream, utopic, vivid): released 3, DNE 1, not-affected 1.
The buffer_slow_realign function in HAProxy 1.5.x before 1.5.14 and 1.6-dev does not properly realign a buffer that is used for pending outgoing data, which allows remote attackers to obtain sensitive information (uninitialized memory contents of previous requests) via a crafted request.