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-2016-2569 low priority: Ubuntu including 1 source packages (squid3), 8 status rows across 8 suites (artful, precise, trusty, upstream, wily, xenial, yakkety, zesty): ignored 4, released 2, DNE 1, not-affected 1.
Squid 3.x before 3.5.15 and 4.x before 4.0.7 does not properly append data to String objects, which allows remote servers to cause a denial of service (assertion failure and daemon exit) via a long string, as demonstrated by a crafted HTTP Vary header.