The remote Ubuntu 14.04 LTS / 16.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-3111-1 advisory.

    A use-after-free was discovered in service workers. If a user were tricked in to opening a specially     crafted website, an attacker could potentially exploit this to cause a denial of service via program     crash, or execute arbitrary code. (CVE-2016-5287)

    It was discovered that web content could access information in the HTTP cache in some circumstances. An     attacker could potentially exploit this to obtain sensitive information. (CVE-2016-5288)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Detections

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Ubuntu 14.04 LTS / 16.04 LTS : Firefox vulnerabilities (USN-3111-1)

critical Nessus Plugin ID 94351

Version 2.11