The remote Ubuntu 14.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-2476-1 advisory.

    Several memory corruption bugs were discovered in ICU. If a user were tricked in to opening a specially     crafted website, an attacker could potentially exploit these to cause a denial of service via renderer     crash or execute arbitrary code with the privileges of the sandboxed render process. (CVE-2014-7923,     CVE-2014-7926)

    A use-after-free was discovered in the IndexedDB implementation. 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     application crash or execute arbitrary code with the privileges of the user invoking the program.
    (CVE-2014-7924)

    A use-after free was discovered in the WebAudio implementation in Blink. 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 renderer crash or execute arbitrary code with the privileges of the sandboxed render process.
    (CVE-2014-7925)

    Several memory corruption bugs were discovered in V8. If a user were tricked in to opening a specially     crafted website, an attacker could potentially exploit these to cause a denial of service via renderer     crash or execute arbitrary code with the privileges of the sandboxed render process. (CVE-2014-7927,     CVE-2014-7928, CVE-2014-7931)

    Several use-after free bugs were discovered in the DOM implementation in Blink. If a user were tricked in     to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of     service via renderer crash or execute arbitrary code with the privileges of the sandboxed render process.
    (CVE-2014-7929, CVE-2014-7930, CVE-2014-7932, CVE-2014-7934)

    A use-after free was discovered in FFmpeg. 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 renderer crash or     execute arbitrary code with the privileges of the sandboxed render process. (CVE-2014-7933)

    Multiple off-by-one errors were discovered in FFmpeg. 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 renderer     crash or execute arbitrary code with the privileges of the sandboxed render process. (CVE-2014-7937)

    A memory corruption bug was discovered in the fonts implementation. 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     renderer crash or execute arbitrary code with the privileges of the sandboxed render process.
    (CVE-2014-7938)

    It was discovered that ICU did not initialize memory for a data structure correctly. 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 renderer crash or execute arbitrary code with the privileges of the sandboxed render     process. (CVE-2014-7940)

    It was discovered that the fonts implementation did not initialize memory for a data structure correctly.
    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 renderer crash or execute arbitrary code with the privileges of the     sandboxed render process. (CVE-2014-7942)

    An out-of-bounds read was discovered in Skia. 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 renderer crash.
    (CVE-2014-7943)

    An out-of-bounds read was discovered in Blink. 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 renderer crash.
    (CVE-2014-7946)

    It was discovered that the AppCache proceeded with caching for SSL sessions even if there is a certificate     error. A remote attacker could potentially exploit this by conducting a MITM attack to modify HTML     application content. (CVE-2014-7948)

    Multiple security issues were discovered in Chromium. If a user were tricked in to opening a specially     crafted website, an attacker could potentially exploit these to read uninitialized memory, cause a denial     of service via application crash or execute arbitrary code with the privileges of the user invoking the     program. (CVE-2015-1205)

    Multiple security issues were discovered in V8. If a user were tricked in to opening a specially crafted     website, an attacker could potentially exploit these to read uninitialized memory, cause a denial of     service via renderer crash or execute arbitrary code with the privileges of the sandboxed render process.
    (CVE-2015-1346)

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.

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Ubuntu 14.04 LTS : Oxide vulnerabilities (USN-2476-1)

critical Nessus Plugin ID 81016

Version 1.22