Lookup for vulnerabilities affecting packages.

GET /api/vulnerabilities/87602?format=api
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{
    "url": "http://public2.vulnerablecode.io/api/vulnerabilities/87602?format=api",
    "vulnerability_id": "VCID-gwuw-j14j-dffw",
    "summary": "kernel: posix-cpu-timers: workaround to suppress the problems with mt exec",
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            "alias": "CVE-2010-4248"
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