The remote Ubuntu 20.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-7078-1 advisory.

    Atte Kettunen discovered that Firefox did not properly validate before inserting ranges into the selection     node cache. An attacker could possibly use this issue to cause a denial of service or execute arbitrary     code.

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

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

Detections

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Ubuntu 20.04 LTS : Firefox vulnerability (USN-7078-1)

medium Nessus Plugin ID 209521

Version 1.2