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-2016-3994 low priority: Ubuntu including 1 source packages (imlib2), 5 status rows across 5 suites (precise, trusty, upstream, wily, xenial): released 4, ignored 1.
The GIF loader in imlib2 before 1.4.9 allows remote attackers to cause a denial of service (application crash) or obtain sensitive information via a crafted image, which triggers an out-of-bounds read.