CVE-2019-0567: ChakraCore RCE Vulnerability
7.5
CVSS Score
3.0
Basic Information
CVE ID
GHSA ID
EPSS Score
0.99681%
CWE
Published
5/13/2022
Updated
9/28/2023
KEV Status
No
Technology
C#
Technical Details
CVSS Vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
---|---|---|---|
Microsoft.ChakraCore | nuget | < 1.11.5 | 1.11.5 |
Vulnerability Intelligence
Miggo AI
Root Cause Analysis
- The GitHub patch specifically adds handling for NewScObjectNoCtor/InitProto opcodes in ProcessFieldKills
- Exploit PoCs directly use these opcodes to trigger type confusion
- CWE-787 (OOB write) manifests via incorrect type assumptions during JIT optimization
- The missing KillObjectHeaderInlinedTypeSyms call left inconsistent type tracking
- Microsoft's advisory explicitly calls out 'Type confusion via NewScObjectNoCtor or InitProto' in the commit message