UpHeron
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Servers and applications

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) 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.

Severity
Medium 5.0
Published
12 Dec 2013
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
22% in the next 30 daysHigher than 97% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
CWE-189
Attack
Over the network · No login needed
Attacker can
Slow it down
CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:P
Sources
NVD

Affected software

SoftwareAffected versions
MemcachedServers and applications · cpe:a:memcached:memcached
  • Version 1.4.4
  • Version 1.4.3
  • Version 1.4.2
  • Version 1.4.1
All 8 release lines
  • Every version up to 1.4.5
  • Version 1.2.7
  • Version 1.2.8
  • Version 1.4.0
  • Version 1.4.1
  • Version 1.4.2
  • Version 1.4.3
  • Version 1.4.4

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2011-4971
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2011-4971