#VU57747 Out-of-bounds write in Apple iOS and iPadOS


Published: 2021-10-27 | Updated: 2023-03-30

Vulnerability identifier: #VU57747

Vulnerability risk: High

CVSSv3.1: 8.4 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: CVE-2021-30900

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 a malicious application to escalate privileges on the system.

The vulnerability exists due to a boundary error in GPU Drivers. A malicious application can trigger an out-of-bounds write and execute arbitrary code with kernel privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Apple iOS: 15.0 19A346 - 15.0.2 19A404

iPadOS: 15.0 19A346 - 15.0.2 19A404


External links
http://support.apple.com/en-us/HT212867


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.


Latest bulletins with this vulnerability