# CVE-2020-36462: Duplicate Advisory: Data races on syncpool

> The syncpool crate incorrectly implements Send for Bucket2, potentially causing undefined behavior in concurrent contexts.

- **Severity:** High 8.1 (`CVSS:3.1/AV:N/AC:H/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:** Yes
- **Published:** 8 Aug 2021
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-r88h-6987-g79f, GHSA-vp6r-mrq9-8f4h, RUSTSEC-2020-0142

## What is CVE-2020-36462?

CVE-2020-36462 is a high-severity vulnerability in n/a, published on 8 Aug 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An issue was discovered in the syncpool crate before 0.1.6 for Rust. There is an unconditional implementation of Send for Bucket2.

Weakness: CWE-77 (Improper Neutralization of Special Elements used in a Command)

## Which versions are affected by CVE-2020-36462?

5 open source packages ship an affected version, including syncpool. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `syncpool` | crates.io | All versions | 0.1.6 |
| `syncpool` | crates.io | All versions | 0.1.6 |
| `syncpool` | crates.io | All versions | 0.1.6 |
| `syncpool` | crates.io | All versions | 0.1.6 |
| `syncpool` | crates.io | From 0.0.0-0 | 0.1.6 |

Products: Syncpool Project Syncpool.

## How do I fix CVE-2020-36462?

Upgrade syncpool to 0.1.6 or later.

## Is CVE-2020-36462 being exploited?

There is no known exploitation of CVE-2020-36462 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-36462 and fix it if it is affected.

What it is: CVE-2020-36462 is a high-severity vulnerability in n/a, published on 8 Aug 2021. 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-2020-36462 in the wild and no public exploit code.

Affected packages and fixed versions:
- syncpool (crates.io): affected all versions; fixed in 0.1.6
- syncpool (crates.io): affected all versions; fixed in 0.1.6
- syncpool (crates.io): affected all versions; fixed in 0.1.6
- syncpool (crates.io): affected all versions; fixed in 0.1.6
- syncpool (crates.io): affected from 0.0.0-0; fixed in 0.1.6

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-2020-36462/ (Markdown: https://insights.sbomify.com/CVE-2020-36462/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-36462
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-36462
- OSV: https://osv.dev/vulnerability/CVE-2020-36462

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-36462/
Summaries are generated and may contain mistakes; the official description above is the record.