memcached – multiple vulnerabilities – CVE-2016-8704

Title:

MEMCACHED SERVER APPEND/PREPEND REMOTE CODE EXECUTION VULNERABILITY

CVE ID:

CVE-2016-8704

Description:

The MITRE CVE dictionary describes this issue as:

An integer overflow flaw, leading to a heap-based buffer overflow, was found in the memcached binary protocol. An attacker could create a specially crafted message that would cause the memcached server to crash or, potentially, execute arbitrary code.

Find out more about CVE-2016-8704 from the MITRE CVE dictionary  and NIST NVD.

CVSS SCORE:

9.8 – CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Mitigation:

This flaw is in the memcached binary protocol. If you client programs only use the ASCII protocol when communicating with memcached, you can disable the binary protocol and protect against this flaw by adding “-B ascii” to OPTIONS in /etc/sysconfig/memcached.

External References:


http://www.talosintelligence.com/reports/TALOS-2016-0219/
https://access.redhat.com/security/cve/cve-2016-8704

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