CVE-2019-1103: Out-of-bounds write
7.5
CVSS Score
3.0
Basic Information
CVE ID
GHSA ID
EPSS Score
0.88665%
CWE
Published
3/29/2021
Updated
2/1/2023
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 | < 1.11.11 | 1.11.11 |
Vulnerability Intelligence
Miggo AI
Root Cause Analysis
The patches in commits 75162b7 and efab310 modify bailout handling (BackwardPass.cpp
), array value merging (GlobOptBlockData.cpp
), and type layout checks (Opnd.cpp
). These changes explicitly address scenarios where improper JIT optimizations could cause out-of-bounds writes due to missing type validation, incorrect loop back edge handling, and object layout assumptions. The functions directly modified in these patches are the root causes of the vulnerability.