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-2014-8991 low priority: Ubuntu including 1 source packages (python-pip), 12 status rows across 12 suites (artful, bionic, lucid, precise, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): ignored 8, not-affected 3, released 1.
pip 1.3 through 1.5.6 allows local users to cause a denial of service (prevention of package installation) by creating a /tmp/pip-build-* file for another user.