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
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.090 (95.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 95.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.090 · newest: 0.090 · change: 0.000
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
Weakness classification (CWE)
References
- support.apple.com/HT208850 (Vendor Advisory)
- www.exploit-db.com/exploits/44861/ (VDB Entry, Third Party Advisory, exploit)
- support.apple.com/HT208853 (Vendor Advisory)
- support.apple.com/HT208851 (Vendor Advisory)
- security.gentoo.org/glsa/201808-04 (vendor-advisory, Third Party Advisory)
- support.apple.com/HT208854 (Vendor Advisory)
- www.securitytracker.com/id/1041029 (VDB Entry, Third Party Advisory, vdb-entry)
- usn.ubuntu.com/3687-1/ (vendor-advisory, Third Party Advisory)
- support.apple.com/HT208848 (Vendor Advisory)
- bugs.chromium.org/p/project-zero/issues/detail (Exploit, Third Party Advisory, 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.