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CVE-2016-3248

CVE-2016-3248: ChakraCore RCE Vulnerability

8.8

CVSS Score
3.0

Basic Information

CVE ID
CVE-2016-3248
GHSA ID
GHSA-q6mv-8vh9-4ggj
EPSS Score
0.95927%
CWE
CWE-119
Published
5/14/2022
Updated
11/2/2023
KEV Status
No
Technology
TechnologyC#

Technical Details

CVSS Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Package NameEcosystemVulnerable VersionsFirst Patched Version
Microsoft.ChakraCorenuget<= 1.2.0

Vulnerability Intelligence
Miggo AIMiggo AI

Miggo AIRoot Cause Analysis

The vulnerability (CVE-2016-3248) is a memory corruption issue in ChakraCore's JavaScript engine, classified under CWE-119. Microsoft's advisories explicitly state the root cause lies in improper memory handling during object operations. The Recycler (garbage collector) and array element assignment functions are core components where memory safety violations commonly occur in scripting engines. The high confidence stems from: (1) Historical precedent for Recycler-related CVEs in ChakraCore, (2) OP_SetElementI's direct role in memory writes for array operations, and (3) The vulnerability's alignment with typical bounds-checking failures in dynamic language runtimes.

Vulnerable functions

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WAF Protection Rules

WAF Rule

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Reasoning

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