---
id: 4423
title: "Heap Overflow in OpenBSD's slaacd via Router Advertisement"
source_domain: blog.quarkslab.com
source_url: "https://blog.quarkslab.com/heap-overflow-in-openbsds-slaacd-via-router-advertisement.html"
published_at: "2022-03-21T23:00:00Z"
tags: ["vulnerability", "ipv6", "heap-overflow", "openbsd", "slaacd", "router-advertisement"]
phying_url: "https://phying.com/item/4423"
lang: en
---

# Heap Overflow in OpenBSD's slaacd via Router Advertisement

## Summary

Analysis of a heap overflow in OpenBSD's slaacd: a malformed domain label in a Router Advertisement DNSSL option, patched in March 2022, with a proof-of-concept provided.

## Intelligence Metadata

- **Sources:** blog.quarkslab.com
- **Published:** 2022-03-21T23:00:00Z
- **Original:** https://blog.quarkslab.com/heap-overflow-in-openbsds-slaacd-via-router-advertisement.html
- **Phying News:** https://phying.com/item/4423