CVE-2018-4200

HIGH

Safari < 11.1 - Remote Code Execution via WebCore::jsElementScrollHeightGetter Use-After-Free

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2018-4200. PoCs published by Google Security Research.

AI-analyzed exploit summary This is a proof-of-concept exploit for a use-after-free vulnerability in WebKit (CVE-2018-4200). The PoC triggers the vulnerability by manipulating DOM elements and styles, leading to a heap-use-after-free condition, which could potentially be exploited for remote code execution.

Description

An issue was discovered in certain Apple products. iOS before 11.3.1 is affected. Safari before 11.1 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. 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 a WebCore::jsElementScrollHeightGetter use-after-free.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Google Security Research · htmldosmultiple
https://www.exploit-db.com/exploits/44566

This is a proof-of-concept exploit for a use-after-free vulnerability in WebKit (CVE-2018-4200). The PoC triggers the vulnerability by manipulating DOM elements and styles, leading to a heap-use-after-free condition, which could potentially be exploited for remote code execution.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Racy
Target: WebKit (Revision 227958 on OSX)
No auth needed
Prerequisites: Victim must visit a malicious webpage or be tricked into refreshing the page multiple times
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (11)

Core 11
Core References
Vendor Advisory x_refsource_confirm
https://support.apple.com/HT208850
Vendor Advisory x_refsource_confirm
https://support.apple.com/HT208741
Third Party Advisory, VDB Entry vdb-entry x_refsource_sectrack
http://www.securitytracker.com/id/1040743
Vendor Advisory x_refsource_confirm
https://support.apple.com/HT208853
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/201808-04
Vendor Advisory x_refsource_confirm
https://support.apple.com/HT208743
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/3640-1/
Third Party Advisory, VDB Entry vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/103961
Exploit, Third Party Advisory, VDB Entry exploit x_refsource_exploit-db
https://www.exploit-db.com/exploits/44566/
Vendor Advisory x_refsource_confirm
https://support.apple.com/HT208852
Exploit, Issue Tracking, Third Party Advisory x_refsource_misc
https://bugs.chromium.org/p/project-zero/issues/detail?id=1525

Scores

CVSS v3 8.8
EPSS 0.4002
EPSS Percentile 97.4%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Details

CWE
CWE-416
Status published
Products (8)
apple/icloud < 7.5
apple/iphone_os < 11.3.1
apple/itunes < 12.7.5
apple/safari < 11.1
apple/tvos < 11.4
canonical/ubuntu_linux 16.04
canonical/ubuntu_linux 17.10
canonical/ubuntu_linux 18.04
Published Jun 08, 2018
Tracked Since Feb 18, 2026