CVE-2017-5949 Information

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.

CVSS Vector

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

Reference

http://www.securityfocus.com/bid/97298 https://bugs.webkit.org/show_bug.cgi?id=167239 https://trac.webkit.org/changeset/211479

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8