CVE-2018-4218
published 2018-06-08CVE-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…
PriorityP262high8.8CVSS 3.0
AVNACLPRNUIRSUCHIHAH
EXPLOIT
EPSS
9.08%
94.7th percentile
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.
Affected
16 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apple | icloud | < 7.5 | 7.5 |
| apple | icloud_for_windows | — | — |
| apple | ios | — | — |
| apple | iphone_os | < 11.4 | 11.4 |
| apple | itunes | < 12.7.5 | 12.7.5 |
| apple | itunes_12.7.5_for_windows | — | — |
| apple | safari | < 11.1.1 | 11.1.1 |
| apple | safari | — | — |
| apple | tvos | < 11.4 | 11.4 |
| apple | tvos | — | — |
| apple | watchos | < 4.3.1 | 4.3.1 |
| apple | watchos | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| canonical | ubuntu_linux | — | — |
| debian | webkit2gtk | < webkit2gtk 2.20.3-1 (bookworm) | webkit2gtk 2.20.3-1 (bookworm) |
Detection & IOCsextracted from sources · hover to see the quote
- →Look for JavaScript generator abuse patterns where an object's __proto__ is set to an iterator object and .next() is called, triggering a use-after-free on @generatorState ↗
- →The vulnerability is triggered via a crafted web page that causes a use-after-free when resuming a JavaScript generator (GeneratorState object freed and reused); monitor WebKit/JavaScriptCore crashes referencing generatorState or generator resumption ↗
- →Exploit PoC uses Array.pop() in a loop combined with prototype chain manipulation on a generator iterator to corrupt memory; inspect suspicious JS for Array.pop() combined with __proto__ reassignment to an iterator ↗
- ·Exploit is delivered entirely via crafted web content; no network-level IOC (domain/IP) is embedded in the public PoC — detection must rely on content/behavioral inspection ↗
- ·Affected products span multiple Apple platforms (iOS <11.4, Safari <11.1.1, iCloud for Windows <7.5, iTunes for Windows <12.7.5, tvOS <11.4, watchOS <4.3.1); ensure version checks cover all WebKit consumers, not just Safari ↗
CVSS provenance
nvdv3.08.8HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvdv2.06.8MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P
osv8.8HIGH
vendor_debian8.8LOW
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Ubuntu
WebKitGTK+ vulnerabilities
vendor_ubuntu·2018-06-18
CVE-2018-12293 WebKitGTK+ vulnerabilities
Title: WebKitGTK+ vulnerabilities
Summary: Several security issues were fixed in WebKitGTK+.
A large number of security issues were discovered in the WebKitGTK+ Web and
JavaScript engines. If a user were tricked into viewing a malicious
website, a remote attacker could exploit a variety of issues related to web
browser security, including cross-site scripting attacks, denial of service
attacks, and arbitrary code execution.
Instructions: This update uses a new upstream release, which includes additional bug
fixes. After a standard system update you need to restart any applications
that use WebKitGTK+, such as Epiphany, to make all the necessary changes.
Apple
CVE-2018-4218: Safari 11.1.1
vendor_apple·2018-06-01·CVSS 8.8
CVE-2018-4218 [HIGH] CVE-2018-4218: Safari 11.1.1
Apple Security Update: About the security content of Safari 11.1.1
Product: Safari
Version: 11.1.1
CVE: CVE-2018-4218
Component: WebKit
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: Multiple memory corruption issues were addressed with improved memory handling.
Apple
CVE-2018-4218: iCloud for Windows 7.5
vendor_apple·2018-06-01·CVSS 8.8
CVE-2018-4218 [HIGH] CVE-2018-4218: iCloud for Windows 7.5
Apple Security Update: About the security content of iCloud for Windows 7.5
Product: iCloud for Windows
Version: 7.5
CVE: CVE-2018-4218
Component: WebKit
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: Multiple memory corruption issues were addressed with improved memory handling.
Apple
CVE-2018-4218: watchOS 4.3.1
vendor_apple·2018-05-29·CVSS 8.8
CVE-2018-4218 [HIGH] CVE-2018-4218: watchOS 4.3.1
Apple Security Update: About the security content of watchOS 4.3.1
Product: watchOS
Version: 4.3.1
CVE: CVE-2018-4218
Component: WebKit
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: Multiple memory corruption issues were addressed with improved memory handling.
Apple
CVE-2018-4218: iOS 11.4
vendor_apple·2018-05-29·CVSS 8.8
CVE-2018-4218 [HIGH] CVE-2018-4218: iOS 11.4
Apple Security Update: About the security content of iOS 11.4
Product: iOS
Version: 11.4
CVE: CVE-2018-4218
Component: WebKit
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: Multiple memory corruption issues were addressed with improved memory handling.
Apple
CVE-2018-4218: tvOS 11.4
vendor_apple·2018-05-29·CVSS 8.8
CVE-2018-4218 [HIGH] CVE-2018-4218: tvOS 11.4
Apple Security Update: About the security content of tvOS 11.4
Product: tvOS
Version: 11.4
CVE: CVE-2018-4218
Component: WebKit
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: Multiple memory corruption issues were addressed with improved memory handling.
Apple
CVE-2018-4218: iTunes 12.7.5 for Windows
vendor_apple·2018-05-29·CVSS 8.8
CVE-2018-4218 [HIGH] CVE-2018-4218: iTunes 12.7.5 for Windows
Apple Security Update: About the security content of iTunes 12.7.5 for Windows
Product: iTunes 12.7.5 for Windows
CVE: CVE-2018-4218
Component: WebKit
Impact: Processing maliciously crafted web content may lead to arbitrary code execution
Description: Multiple memory corruption issues were addressed with improved memory handling.
Debian
CVE-2018-4218: webkit2gtk - An issue was discovered in certain Apple products. iOS before 11.4 is affected. ...
vendor_debian·2018·CVSS 8.8
CVE-2018-4218 [HIGH] CVE-2018-4218: webkit2gtk - An issue was discovered in certain Apple products. iOS before 11.4 is affected. ...
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.
Scope: local
bookworm: resolved (fixed in 2.20.3-1)
bullseye: resolved (fixed in 2.20.3-1)
forky: resolved (fixed in 2.20.3-1)
sid: resolved (fixed in 2.20.3-1)
trixie: resolved (fixed in 2.20.3-1)
GHSA
GHSA-v4g5-82wj-3j9w: An issue was discovered in certain Apple products
ghsa_unreviewed·2022-05-13
CVE-2018-4218 [HIGH] CWE-416 GHSA-v4g5-82wj-3j9w: An issue was discovered in certain Apple products
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.
OSV
CVE-2018-4218: An issue was discovered in certain Apple products
osv·2018-06-08·CVSS 8.8
CVE-2018-4218 [HIGH] CVE-2018-4218: An issue was discovered in certain Apple products
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.
No detection rules found.
No writeups or analysis indexed.
http://www.securitytracker.com/id/1041029https://bugs.chromium.org/p/project-zero/issues/detail?id=1553https://security.gentoo.org/glsa/201808-04https://support.apple.com/HT208848https://support.apple.com/HT208850https://support.apple.com/HT208851https://support.apple.com/HT208852https://support.apple.com/HT208853https://support.apple.com/HT208854https://usn.ubuntu.com/3687-1/https://www.exploit-db.com/exploits/44861/http://www.securitytracker.com/id/1041029https://bugs.chromium.org/p/project-zero/issues/detail?id=1553https://security.gentoo.org/glsa/201808-04https://support.apple.com/HT208848https://support.apple.com/HT208850https://support.apple.com/HT208851https://support.apple.com/HT208852https://support.apple.com/HT208853https://support.apple.com/HT208854https://usn.ubuntu.com/3687-1/https://www.exploit-db.com/exploits/44861/
2018-06-08
Published