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-2016-3957 medium priority: Ubuntu including 1 source packages (web2py), 7 status rows across 7 suites (artful, bionic, cosmic, disco, trusty, upstream, xenial): DNE 4, ignored 1, needs-triage 1, released 1.
The secure_load function in gluon/utils.py in web2py before 2.14.2 uses pickle.loads to deserialize session information stored in cookies, which might allow remote attackers to execute arbitrary code by leveraging knowledge of encryption_key.