CVE-2017-5949

CRITICAL

Safari - Out-of-bounds Write via JavaScript Red-Zone Memory Access

Title source: llm

Description

JavaScriptCore in WebKit, as distributed in Safari Technology Preview Release 22, allows remote attackers to cause a denial of service (heap-based out-of-bounds write and application crash) or possibly have unspecified other impact via crafted JavaScript code that triggers access to red-zone memory locations, related to jit/ThunkGenerators.cpp, llint/LowLevelInterpreter32_64.asm, and llint/LowLevelInterpreter64.asm.

References (3)

Core 3

Core References

Third Party Advisory, VDB Entry vdb-entry x_refsource_bid

http://www.securityfocus.com/bid/97298

Issue Tracking, Third Party Advisory x_refsource_confirm

https://trac.webkit.org/changeset/211479

Issue Tracking, Third Party Advisory x_refsource_confirm

https://bugs.webkit.org/show_bug.cgi?id=167239

Scores

CVSS v3 9.8

EPSS 0.0182

EPSS Percentile 76.4%

Attack Vector NETWORK

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE

CWE-787

Status published

Products (1)

apple/safari 22

Published Apr 03, 2017

Tracked Since Feb 18, 2026