An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in tvOS 14.6, iOS 14.6 and iPadOS 14.6, Security Update 2021-003 Catalina, macOS Big Sur 11.4, watchOS 7.5. Processing a maliciously crafted audio file may disclose restricted memory.

According to its banner, the version of Apple TV on the remote device is prior to 14.6. It is therefore affected by multiple vulnerabilities as described in the HT212532, including:

  - Processing maliciously crafted web content may lead to arbitrary code execution. (CVE-2021-30665)

  - Processing a maliciously crafted audio file may lead to arbitrary code execution (CVE-2021-30707)

  - Processing maliciously crafted web content may lead to universal cross site scripting (CVE-2021-30689)

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

The version of Apple iOS running on the mobile device is prior to 14.6. It is, therefore, affected by multiple vulnerabilities.

The remote host is running a version of macOS / Mac OS X that is 11.x prior to 11.4 Big Sur. It is, therefore, affected by multiple vulnerabilities including the following:

 - A remote attacker may be able to cause unexpected application termination or arbitrary code execution.
    (CVE-2021-30712)

  - A remote attacker may be able to cause unexpected application termination or arbitrary code execution.
    (CVE-2021-30678)

  - An application may be able to execute arbitrary code with kernel privileges. (CVE-2021-30704)

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

ID	Name	Product	Family	Severity
149992	Apple TV < 14.6 Multiple Vulnerabilities	Nessus	Misc.	high
149987	Apple iOS < 14.6 Multiple Vulnerabilities (HT212528)	Nessus	Mobile Devices	high
149986	macOS 11.x < 11.4 (HT212529)	Nessus	MacOS X Local Security Checks	critical

Detections

Analytics

CVE-2021-30686

medium

Tenable Plugins

high

high

critical