CVE-2019-1131: Microsoft.ChakraCore Out-of-bounds Write Vulnerability

HIGH
Advisory Identifier: GHSA-mw7r-3g6w-85qg
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CVSS 7.5
CWE-787
Published
Advisory Summary

CVE-2019-1131 is a HIGH (CVSS 7.5) out-of-bounds write vulnerability (CWE-787: Out-of-bounds Write) affecting Microsoft.ChakraCore libraries in the NuGet ecosystem. The issue involves out-of-bounds write in microsoft.chakracore. Remediation is available by upgrading affected packages to version 1.11.12.

CVE-2019-1131 at a Glance

CVE Identifier CVE-2019-1131
GHSA Identifier GHSA-mw7r-3g6w-85qg
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-787: Out-of-bounds Write
Affected Product Microsoft.ChakraCore
Package Ecosystem NuGet
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H).

Attack Vector Network (AV:N)
Attack Complexity High (AC:H)
Privileges Required None (PR:N)
User Interaction Required (UI:R)
Scope Unchanged (S:U)
Confidentiality High (C:H)
Integrity High (I:H)
Availability High (A:H)

How to Fix CVE-2019-1131

To remediate this vulnerability, upgrade all affected Microsoft.ChakraCore dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

Microsoft.ChakraCore fixed: 1.11.12 
Upgrade Microsoft.ChakraCore to 1.11.12
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for Microsoft.ChakraCore

How to Check if You Are Affected

To determine whether your application is affected by CVE-2019-1131, inspect your project dependencies for Microsoft.ChakraCore:

inspect dependencies for Microsoft.ChakraCore

Analyze the terminal output to locate any version of Microsoft.ChakraCore in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.11.12), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-787: Out-of-bounds Write, where the product writes data past the end, or before the beginning, of the intended buffer. In Microsoft.ChakraCore, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge, aka 'Chakra Scripting Engine Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2019-1139, CVE-2019-1140, CVE-2019-1141, CVE-2019-1195, CVE-2019-1196, CVE-2019-1197.

CVE-2019-1131 Affected Microsoft.ChakraCore Versions

1 component(s)
Fixed Versions:
1.11.12
Product / Package Ecosystem Affected Versions Fixed Version
Microsoft.ChakraCore
nuget/Microsoft.ChakraCore
NuGet
< 1.11.12
1.11.12

References

NVD — CVE-2019-1131 NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-1131
Security Fix Commit FIX COMMIT
https://github.com/chakra-core/ChakraCore/commit/242c59ea40c0428e1ced7366bf2c28bfbdda1999
Security Fix Commit FIX COMMIT
https://github.com/chakra-core/ChakraCore/commit/6b1250b6ffea7006226dd937e52cf5b353fcfc15
Microsoft.ChakraCore Security Information SECURITY
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1131

Frequently Asked Questions

What is CVE-2019-1131?
CVE-2019-1131 is a security vulnerability in Microsoft.ChakraCore involving Out-of-bounds write in Microsoft.ChakraCore under CWE-787: Out-of-bounds Write.
Which Microsoft.ChakraCore versions are affected?
Affected versions include releases prior to 1.11.12 across affected packages: Microsoft.ChakraCore.
What version fixes CVE-2019-1131?
Upgrading to 1.11.12 (or the latest patched release for your respective branch) resolves the vulnerability.
Is Microsoft.ChakraCore affected?
Yes, Microsoft.ChakraCore is affected in releases prior to 1.11.12. Upgrade your dependency to 1.11.12 or later.
What is the CVSS score of CVE-2019-1131?
CVE-2019-1131 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.
What CWE is associated with CVE-2019-1131?
CVE-2019-1131 is classified under CWE-787: Out-of-bounds Write (The product writes data past the end, or before the beginning, of the intended buffer.).
How can I check NuGet dependencies for CVE-2019-1131?
Run the dependency tree command: 'inspect dependencies for Microsoft.ChakraCore'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-mw7r-3g6w-85qg",
  "modified" : "2024-06-03T18:39:44Z",
  "published" : "2021-03-29T20:57:46Z",
  "aliases" : [ "CVE-2019-1131" ],
  "summary" : "Out-of-bounds write in Microsoft.ChakraCore",
  "details" : "A remote code execution vulnerability exists in the way that the Chakra scripting engine handles objects in memory in Microsoft Edge, aka 'Chakra Scripting Engine Memory Corruption Vulnerability'. This CVE ID is unique from CVE-2019-1139, CVE-2019-1140, CVE-2019-1141, CVE-2019-1195, CVE-2019-1196, CVE-2019-1197.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "NuGet",
      "name" : "Microsoft.ChakraCore"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.11.12"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2019-1131"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/chakra-core/ChakraCore/commit/242c59ea40c0428e1ced7366bf2c28bfbdda1999"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/chakra-core/ChakraCore/commit/6b1250b6ffea7006226dd937e52cf5b353fcfc15"
  }, {
    "type" : "WEB",
    "url" : "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1131"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-787" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2021-03-22T22:10:01Z",
    "nvd_published_at" : "2019-08-14T21:15:00Z"
  }
}