Vulnerability identifier: #VU53785

Vulnerability risk: Low

CVSSv3.1: 5.6 [CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-1796

CWE-ID: CWE-787

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Apple iOS
Operating systems & Components / Operating system
iPadOS
Operating systems & Components / Operating system

Vendor: Apple Inc.

Description

The vulnerability allows an attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted input in Bluetooth subsystem.  An attacker with physical proximity to the device can  trigger out-of-bounds write and execute arbitrary code on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Apple iOS: 14.2 18B92 - 14.2.1 18B121, 14.0 18A373 - 14.0.1 18A393

iPadOS: 14.0 18A373 - 14.3 18C66

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External links
http://support.apple.com/en-us/HT212146

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Q & A

Can this vulnerability be exploited remotely?

No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.