#VU6558 Memory corruption in Apple iOS - CVE-2017-2515

Vulnerability identifier: #VU6558

Vulnerability risk: High

CVSSv4.0: 7.3 [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:P/U:Amber]

CVE-ID: CVE-2017-2515

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: Yes

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 boundary error in the WebKit component when processing maliciously web content. A remote attacker can create a specially crafted webpage, trick the victim into visiting it, trigger memory corruption and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation
Update to version 10.3.2.

Vulnerable software versions

Apple iOS: 9.0.0 - 9.0.2, 9.1.0, 9.2 - 9.2.1, 9.3.0 - 9.3.5, 10.0.0 - 10.0.3, 10.1 - 10.1.1, 10.2 - 10.2.1, 10.3 - 10.3.1

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External links
https://support.apple.com/en-us/HT207798

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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. However, proof of concept for this vulnerability is available.