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.
Metrics
CVSS 3.0 7.5/10
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a | n/a |
References
- https://bugs.webkit.org/show_bug.cgi?id=165091Issue Tracking, Third Party Advisory
- https://trac.webkit.org/changeset/209295Issue Tracking, Third Party Advisory
- https://bugs.webkit.org/show_bug.cgi?id=165091Issue Tracking, Third Party Advisory
- https://trac.webkit.org/changeset/209295Issue Tracking, Third Party Advisory
Timeline
- Published
- Apr 3, 2017
- Last modified
- Jun 17, 2026
- NVD status
- Modified