# CVE-2020-0813: ChakraCore information disclosure vulnerability

> An information disclosure vulnerability in the Chakra scripting engine allows attackers to read memory contents, potentially aiding further compromise.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 12 Mar 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-vvvh-5xrm-pxff

## What is CVE-2020-0813?

CVE-2020-0813 is a high-severity vulnerability in Microsoft Chakracore, published on 12 Mar 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An information disclosure vulnerability exists when Chakra improperly discloses the contents of its memory, which could provide an attacker with information to further compromise the user’s computer or data.To exploit the vulnerability, an attacker must know the memory address of where the object was created.The update addresses the vulnerability by changing the way certain functions handle objects in memory., aka 'Scripting Engine Information Disclosure Vulnerability'.

## Which versions are affected by CVE-2020-0813?

2 open source packages ship an affected version, including Microsoft.ChakraCore. It affects 2 products.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `Microsoft.ChakraCore` | NuGet | All versions | 1.11.17 |
| `Microsoft.ChakraCore` | NuGet | All versions | 1.11.17 |

Products: Microsoft Chakracore, Microsoft Edge.

## How do I fix CVE-2020-0813?

Upgrade Microsoft.ChakraCore to 1.11.17 or later.

## Is CVE-2020-0813 being exploited?

There is no known exploitation of CVE-2020-0813 in the wild and no public exploit code.

## Other vulnerabilities in Microsoft Chakracore

- [CVE-2018-8298](https://insights.sbomify.com/CVE-2018-8298/): ChakraCore Scripting Engine Type Confusion (high 7.5, exploited in the wild)
- [CVE-2020-0878](https://insights.sbomify.com/CVE-2020-0878/): Microsoft Edge and Internet Explorer Memory Corruption (medium 4.2, exploited in the wild)
- [CVE-2018-8500](https://insights.sbomify.com/CVE-2018-8500/): ChakraCore RCE Vulnerability (critical 9.8)
- [CVE-2017-11767](https://insights.sbomify.com/CVE-2017-11767/): ChakraCore vulnerable to privilege escalation (critical 9.8)
- [CVE-2017-8658](https://insights.sbomify.com/CVE-2017-8658/): ChakraCore RCE Vulnerability (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-0813 and fix it if it is affected.

What it is: CVE-2020-0813 is a high-severity vulnerability in Microsoft Chakracore, published on 12 Mar 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-0813 in the wild and no public exploit code.

Affected packages and fixed versions:
- Microsoft.ChakraCore (NuGet): affected all versions; fixed in 1.11.17
- Microsoft.ChakraCore (NuGet): affected all versions; fixed in 1.11.17

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2020-0813/ (Markdown: https://insights.sbomify.com/CVE-2020-0813/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-0813
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-0813
- OSV: https://osv.dev/vulnerability/CVE-2020-0813

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-0813/
Summaries are generated and may contain mistakes; the official description above is the record.