HTTP: Microsoft Edge AsmJsInterpreter Use After Free

A use-after-free vulnerability exists in Microsoft Edge. Successful exploitation could lead to arbitrary code execution in the security context of the target user.

Extended Description

Microsoft Edge in Microsoft Windows 10 1511, 1607, and 1703, and Windows Server 2016 allow an attacker to execute arbitrary code in the context of the current user when the JavaScript engine fails to render when handling objects in memory in Microsoft Edge, aka "Scripting Engine Memory Corruption Vulnerability". This CVE ID is unique from CVE-2017-8596, CVE-2017-8610, CVE-2017-8598, CVE-2017-8618, CVE-2017-8619, CVE-2017-8595, CVE-2017-8601, CVE-2017-8604, CVE-2017-8605, CVE-2017-8606, CVE-2017-8607, CVE-2017-8608, and CVE-2017-8609.

References

BugTraq: 99406

CVE: CVE-2017-8603

Short Name
HTTP:MICROSOFT-EDGE-ASMJS-UAF
Severity
Major
Recommended
True
Recommended Action
Drop
Category
HTTP
Keywords
After AsmJsInterpreter CVE-2017-8603 Edge Free Microsoft Use bid:99406
Release Date
08/24/2017
Supported Platforms

srx-branch-12.3

srx-19.3

srx-branch-19.3

vsrx3bsd-19.2

srx-branch-19.4

vsrx-19.4

mx-12.3

mx-19.4

vmx-19.4

mx-19.3

vsrx3bsd-19.4

srx-19.4

vsrx-12.3

vmx-19.3

vsrx-19.2

srx-12.3

Sigpack Version
3415
False Positive
Unknown
CVSS Score

7.6

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