CVE-2011-4971

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Summary

CVECVE-2011-4971
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2013-12-12 18:55:03 UTC
Updated2026-04-29 01:13:23 UTC
DescriptionMultiple 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.

Risk And Classification

Primary CVSS: v2.0 5 from [email protected]

AV:N/AC:L/Au:N/C:N/I:N/A:P

EPSS: 0.460680000 probability, percentile 0.976490000 (date 2026-04-29)

Problem Types: CWE-189 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial

AV:N/AC:L/Au:N/C:N/I:N/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Memcached Memcached 1.2.7 All All All
Application Memcached Memcached 1.2.8 All All All
Application Memcached Memcached 1.4.0 All All All
Application Memcached Memcached 1.4.1 All All All
Application Memcached Memcached 1.4.2 All All All
Application Memcached Memcached 1.4.3 All All All
Application Memcached Memcached 1.4.4 All All All
Application Memcached Memcached All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Memcached Remote Denial of Service PoC | Insecurety Research af854a3a-2127-422b-91ae-364da2661108 insecurety.net Exploit
CVE-2011-4971 Memcached vulnerability | Puppet af854a3a-2127-422b-91ae-364da2661108 puppet.com
Issue 192 - memcached - Crash when sending specially crafted packet - Memcached - Google Project Hosting af854a3a-2127-422b-91ae-364da2661108 code.google.com Exploit, Patch
Security Advisory SA56183 - Debian update for memcached - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
Debian -- Security Information -- DSA-2832-1 memcached af854a3a-2127-422b-91ae-364da2661108 www.debian.org
memcached Remote Denial of Service Vulnerability af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
Support / Security / Advisories / / MDVSA-2013:280 | Mandriva af854a3a-2127-422b-91ae-364da2661108 www.mandriva.com
USN-2080-1: Memcached vulnerabilities | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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