CVE-2017-5949 — CRITICAL (9.8)

Vulnerability 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 Score

9.8

CRITICAL

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Apple	Safari	22

Related Weaknesses (CWE)

CWE-787

References

http://www.securityfocus.com/bid/97298Third Party AdvisoryVDB Entry
https://bugs.webkit.org/show_bug.cgi?id=167239Issue TrackingThird Party Advisory
https://trac.webkit.org/changeset/211479Issue TrackingThird Party Advisory
http://www.securityfocus.com/bid/97298Third Party AdvisoryVDB Entry
https://bugs.webkit.org/show_bug.cgi?id=167239Issue TrackingThird Party Advisory
https://trac.webkit.org/changeset/211479Issue TrackingThird Party Advisory

FAQ

What is CVE-2017-5949?

CVE-2017-5949 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 possibl...

How severe is CVE-2017-5949?

CVE-2017-5949 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2017-5949?

Check the references section above for vendor advisories and patch information. Affected products include: Apple Safari.