Out-of-bounds Read in Apple Icloud
CVE-2018-4222
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 via a crafted web site that leverages a getWasmBufferFromValue out-of-bounds read during WebAssembly compilation.
Vulnerability class: Buffer Overflow
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: 0.104 (95.6th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 96th percentile — 95.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.104 · newest: 0.104 · 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)
Public proof-of-concept exploits
References
- support.apple.com/HT208850 (Vendor Advisory)
- www.exploit-db.com/exploits/44859/ (Exploit, VDB Entry, Third Party Advisory, exploit)
- bugs.chromium.org/p/project-zero/issues/detail (Exploit, Third Party Advisory, Issue Tracking)
- 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)
Frequently asked questions
- What is CVE-2018-4222?
- CVE-2018-4222 is a high-severity vulnerability in Apple Icloud, classified under Out-of-bounds Read. CVSS score: 8.8/10. Published 2018-06-08.
- How severe is CVE-2018-4222?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2018-4222 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.