Description
JavaScriptCore in WebKit, as distributed in Safari Technology Preview Release 18, allows remote attackers to cause a denial of service (bitfield out-of-bounds read and application crash) via crafted JavaScript code that is mishandled in the operatorString function, related to assembler/MacroAssemblerARM64.h, assembler/MacroAssemblerX86Common.h, and wasm/WasmB3IRGenerator.cpp.
References (2)
Core 2
Core References
Issue Tracking, Third Party Advisory x_refsource_confirm
https://bugs.webkit.org/show_bug.cgi?id=165091
Issue Tracking, Third Party Advisory x_refsource_confirm
https://trac.webkit.org/changeset/209295
Scores
CVSS v3
7.5
EPSS
0.0046
EPSS Percentile
64.5%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Details
CWE
CWE-125
Status
published
Products (1)
apple/safari
18
Published
Apr 03, 2017
Tracked Since
Feb 18, 2026