PT-2017-1687 · Apple · Icloud+5

Ivan Fratric · Published 2017-03-30 · Updated 2019-03-19 · CVE-2017-2463

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions iOS versions prior to 10.3 Safari versions prior to 10.1 iCloud versions prior to 6.2 on Windows iTunes versions prior to 12.6 on Windows tvOS versions prior to 10.2

Description The issue involves the WebKit component and allows remote attackers to execute arbitrary code or cause a denial of service, resulting in memory corruption and application crash, via a crafted web site. This is due to a use-after-free vulnerability, which occurs when memory is accessed after it has been freed. The exploitation of this vulnerability can lead to remote code execution or a denial of service.

Recommendations For iOS versions prior to 10.3, update to version 10.3 or later. For Safari versions prior to 10.1, update to version 10.1 or later. For iCloud versions prior to 6.2 on Windows, update to version 6.2 or later. For iTunes versions prior to 12.6 on Windows, update to version 12.6 or later. For tvOS versions prior to 10.2, update to version 10.2 or later. As a temporary workaround, consider restricting access to the WebKit component until a patch is available. Avoid using the vulnerable component to minimize the risk of exploitation.

Fix

RCE

DoS

Use After Free

Weakness Enumeration

CWE-416

Related Identifiers

BDU:2017-00840

CVE-2017-2463

ZDI-17-241

Affected Products

Safari

Webkit

Icloud

Ios

Itunes

Tvos

References · 15

• https://bdu.fstec.ru/vul/2017-00840 · Security Note
• https://support.apple.com/HT207600 · Vendor Advisory
• https://support.apple.com/HT207607 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-17-241 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2017-2463 · Security Note
• https://support.apple.com/HT207617 · Vendor Advisory
• https://support.apple.com/HT207601 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-2463 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2017-2463 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2017-2463 · Security Note
• https://support.apple.com/HT207599 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2017-2463 · Vendor Advisory
• http://zerodayinitiative.com/advisories/ZDI-17-241 · Note
• http://securityfocus.com/bid/97176 · Note
• http://securitytracker.com/id/1038157 · Note