Multiple vulnerabilities in Apple iOS 16 and iPadOS 16

Published: 2023-06-21

Risk	Critical
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2023-32434 CVE-2023-32439
CWE-ID	CWE-190 CWE-843
Exploitation vector	Network
Public exploit	Vulnerability #1 is being exploited in the wild. Vulnerability #2 is being exploited in the wild.
Vulnerable software Subscribe	iPadOS Operating systems & Components / Operating system Apple iOS Operating systems & Components / Operating system
Vendor	Apple Inc.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Integer overflow

EUVDB-ID: #VU77607

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-2023-32434

CWE-ID: CWE-190 - Integer overflow

Exploit availability: No

Description

The vulnerability allows a local application to escalate privileges on the system.

The vulnerability exists due to an integer overflow within the OS kernel. A local application can trigger an integer overflow and execute arbitrary code with kernel privileges.

Note, the vulnerability is being actively exploited in the wild.

Mitigation

Install update from vendor's website.

Vulnerable software versions

iPadOS: 16.0 20A362 - 16.5 20F66

Apple iOS: 16.0 20A362 - 16.5 20F66

CPE2.3

External links

http://support.apple.com/en-us/HT213814

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.

2) Type Confusion

EUVDB-ID: #VU77608

Risk: Critical

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

CVE-ID: CVE-2023-32439

CWE-ID: CWE-843 - Type confusion

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a type confusion error in WebKit. A remote attacker can trick the victim to open a specially crafted web page, trigger a type confusion error and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Note, the vulnerability is being actively exploited in the wild.

Mitigation

Install update from vendor's website.

Vulnerable software versions

iPadOS: 16.0 20A362 - 16.5 20F66

Apple iOS: 16.0 20A362 - 16.5 20F66

CPE2.3

External links

http://support.apple.com/en-us/HT213814

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.