# CVE-2019-1010176: Memory corruption in JerryScript

> A buffer overflow in JerryScript allows attackers to cause denial of service or execute arbitrary code via crafted JavaScript.

- **Severity:** Critical 9.8 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 25 Jul 2019
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-3xh3-gmcq-76vr, UBUNTU-CVE-2019-1010176

## What is CVE-2019-1010176?

CVE-2019-1010176 is a critical memory corruption vulnerability in Jerryscript Jerryscript, published on 25 Jul 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

JerryScript commit 4e58ccf68070671e1fff5cd6673f0c1d5b80b166 is affected by: Buffer Overflow. The impact is: denial of service and possibly arbitrary code execution. The component is: function lit_char_to_utf8_bytes (jerry-core/lit/lit-char-helpers.c:377). The attack vector is: executing crafted javascript code. The fixed version is: after commit 505dace719aebb3308a3af223cfaa985159efae0.

Weakness: CWE-787 (Out-of-bounds Write)

## Which versions are affected by CVE-2019-1010176?

It affects 1 product.


Products: Jerryscript Jerryscript.

## How do I fix CVE-2019-1010176?

No fix has been published for CVE-2019-1010176 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-1010176 being exploited?

There is no known exploitation of CVE-2019-1010176 in the wild and no public exploit code.

## Other vulnerabilities in Jerryscript Jerryscript

- [CVE-2023-36109](https://insights.sbomify.com/CVE-2023-36109/): Memory corruption in n/a (critical 9.8)
- [CVE-2023-38961](https://insights.sbomify.com/CVE-2023-38961/): Memory corruption in n/a (critical 9.8)
- [CVE-2020-22597](https://insights.sbomify.com/CVE-2020-22597/): Memory corruption in n/a (critical 9.8)
- [CVE-2021-42863](https://insights.sbomify.com/CVE-2021-42863/): Memory corruption in n/a (critical 9.8)
- [CVE-2021-43453](https://insights.sbomify.com/CVE-2021-43453/): Memory corruption in n/a (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-1010176 and fix it if it is affected.

What it is: CVE-2019-1010176 is a critical memory corruption vulnerability in Jerryscript Jerryscript, published on 25 Jul 2019. 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-2019-1010176 in the wild and no public exploit code.

Affected product: Jerryscript Jerryscript. No package-level version data is available, so check the vendor advisory linked from the reference page.

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-2019-1010176/ (Markdown: https://insights.sbomify.com/CVE-2019-1010176/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-1010176
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-1010176
- OSV: https://osv.dev/vulnerability/CVE-2019-1010176

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-1010176/
Summaries are generated and may contain mistakes; the official description above is the record.