#VU56717 Buffer overflow in Apple iOS and iPadOS - CVE-2021-30825

Vulnerability identifier: #VU56717

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-30825

CWE-ID: CWE-119

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 local application to escalate privileges on the system.

The vulnerability exists due to a boundary error within CoreML. A local application can trigger denial of service and execute arbitrary code.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Apple iOS: 14.0 18A373 - 14.0.1 18A393, 14.1 18A8395, 14.2 18B92 - 14.2.1 18B121, 14.3 18C66, 14.4 18D52 - 14.4.2 18D70, 14.5 18E199 - 14.5.1 18E212, 14.6 18F72, 14.7 18G69 - 14.7.1 18G82, 14.8 18H17

iPadOS: 14.0 18A373 - 14.8 18H17

---

External links
https://support.apple.com/en-us/HT212814
https://www.zerodayinitiative.com/advisories/ZDI-22-354/

---

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?

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