Vulnerability identifier: #VU9038

Vulnerability risk: High

CVSSv3.1: 8.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-13803

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

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

Vendor: Apple Inc.

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

The weakness exists due to memory handling error in the WebKit component. A remote attacker can trick the victim into visiting a specially crafted website, trigger memory corruption and execute arbitrary code with elevated privileges.

Mitigation
Update to version 11.1.

Vulnerable software versions

Apple iOS: 10.3 - 10.3.3, 10.2 - 10.2.1, 10.1 - 10.1.1, 10.0.0 - 10.0.3, 4.3.0 - 4.3.4, 4.2.1 - 4.2.8, 4.0 - 4.0.2, 3.2 - 3.2.2, 3.1 - 3.1.3, 3.0 - 3.0.1, 9.2 - 9.2.1, 9.3.0 - 9.3.5, 9.1.0, 9.0.0 - 9.0.2

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External links
http://support.apple.com/en-us/HT208222

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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.