Multiple vulnerabilities in Apple iOS 16 and iPadOS 16



| Updated: 2023-04-19
Risk Critical
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2023-23514
CVE-2023-23529
CVE-2023-23524
CWE-ID CWE-416
CWE-843
CWE-20
Exploitation vector Network
Public exploit Vulnerability #2 is being exploited in the wild.
Vulnerable software
 Apple iOS
Operating systems & Components / Operating system

iPadOS
Operating systems & Components / Operating system

Vendor Apple Inc.

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU72160

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-2023-23514

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error within the OS kernel. A local application can trigger a use-after-free error and execute arbitrary code with kernel privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Apple iOS: 16.0 20A362 - 16.3 20D47

iPadOS: 16.0 20A362 - 16.3 20D47

CPE2.3 External links

https://support.apple.com/en-us/HT213635


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.

2) Type Confusion

EUVDB-ID: #VU72161

Risk: Critical

CVSSv4.0: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red]

CVE-ID: CVE-2023-23529

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 when parsing web content in WebKit. A remote attacker can trick the victim to visit a specially crafted website, trigger a type confusion error and execute arbitrary code on the target system.

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

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Apple iOS: 16.0 20A362 - 16.3 20D47

iPadOS: 16.0 20A362 - 16.3 20D47

CPE2.3 External links

https://support.apple.com/en-us/HT213635
https://citizenlab.ca/2023/04/nso-groups-pegasus-spyware-returns-in-2022/


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.

3) Input validation error

EUVDB-ID: #VU72428

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-23524

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input when processing certificates in Apple TV 4K, Apple TV HD and Apple Watch Series 4. A remote attacker can trick the victim to connect to a malicious website, supply a malformed certificate while connecting and perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

iPadOS: before

Apple iOS: before

CPE2.3 External links

https://support.apple.com/en-us/HT213635


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?

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



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