# CVE-2020-35889: RUSTSEC-2020-0037 - Misbehaving `HandleLike` implementation can lead to memory safety violation

Source: https://junglewise.ai/threats/cve-2020-35889-memory-safety-violation-in-crayon  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2020-08-31  
License: CC BY 4.0 with a link back

CVE-2020-35889 · Severity: low · CVSS 3.1 · Published 2020-08-31

Misbehaving `HandleLike` implementation can lead to memory safety violation

Technologies: [crayon (crates.io)](https://junglewise.ai/threats/technologies/crayon). Vendors: [crates.io](https://junglewise.ai/threats/vendors/crates-io).

## Quick answers

**Is CVE-2020-35889 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2020-35889 being exploited in the wild.

**How severe is CVE-2020-35889?** Low severity, with a CVSS score of 3.1, published 31 August 2020.

**Which products and versions are affected?** crayon (crates.io) SEMVER:introduced=0,last_affected=0.7.1, SEMVER:introduced=0.0.0-0.

**Is there a fix for CVE-2020-35889?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**Am I affected by CVE-2020-35889?** Check whether you run crayon (crates.io) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- crayon (crates.io) SEMVER:introduced=0,last_affected=0.7.1, SEMVER:introduced=0.0.0-0

## Identifiers

- CVE-2020-35889
- GHSA-m833-jv95-mfjh
- RUSTSEC-2020-0037

## Related threats

- [crayon: ObjectPool creates uninitialized memory when freeing objects](https://junglewise.ai/threats/crayon-objectpool-creates-uninitialized-memory-when-freeing-objects-2ecaf104)
- [RUSTSEC-2024-0018 - ObjectPool creates uninitialized memory when freeing objects](https://junglewise.ai/threats/rustsec-2024-0018-objectpool-creates-uninitialized-memory-when-freeing-19fc1382)