Use After Free in Apple Icloud
CVE-2018-4218
An issue was discovered in certain Apple products. iOS before 11.4 is affected. Safari before 11.1.1 is affected. iCloud before 7.5 on Windows is affected. iTunes before 12.7.5 on Windows is affected. tvOS before 11.4 is affected. watchOS before 4.3.1 is affected. The issue involves the "WebKit" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site that triggers an @generatorState use-after-free.
Vulnerability class: Use-After-Free
EPSS: 0.091 (94.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Apple Icloud
- Apple Iphone_os
- Apple Itunes
- Apple Safari
- Apple Tvos
- Apple Watchos
- Microsoft Windows
- Canonical Ubuntu_linux — versions 16.04, 17.10, 18.04
- N/a — versions n/a
Weakness classification (CWE)
References
- product-security@apple.com (x_refsource_CONFIRM, Vendor Advisory)
- product-security@apple.com (VDB Entry, Third Party Advisory, exploit, x_refsource_EXPLOIT-DB)
- product-security@apple.com (x_refsource_CONFIRM, Vendor Advisory)
- product-security@apple.com (x_refsource_CONFIRM, Vendor Advisory)
- product-security@apple.com (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
- product-security@apple.com (x_refsource_CONFIRM, Vendor Advisory)
- product-security@apple.com (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
- product-security@apple.com (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
- product-security@apple.com (x_refsource_CONFIRM, Vendor Advisory)
- product-security@apple.com (Exploit, Third Party Advisory, x_refsource_MISC, Issue Tracking)
Frequently asked questions
- What is CVE-2018-4218?
- CVE-2018-4218 is a high-severity vulnerability in Apple Icloud, classified under Use After Free. CVSS score: 8.8/10. Published 2018-06-08.
- How severe is CVE-2018-4218?
- High severity. CVSS v3 base score is 8.8 out of 10.