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-2017-5375 medium priority: Ubuntu including 2 source packages (firefox, thunderbird), 12 status rows across 6 suites (precise, trusty, upstream, xenial, yakkety, zesty): released 11, needs-triage 1.
JIT code allocation can allow for a bypass of ASLR and DEP protections leading to potential memory corruption attacks. This vulnerability affects Thunderbird < 45.7, Firefox ESR < 45.7, and Firefox < 51.