ALAS-2018-964


Amazon Linux AMI Security Advisory: ALAS-2018-964
Advisory Release Date: 2018-03-07 21:14 Pacific
Severity: Medium
References: CVE-2018-1000115 

Issue Overview:

It was discovered that the memcached daemon listened on UDP port 11211 by default. An attacker could use memcached for UDP amplification denial-of-service attacks. The UDP port has been disabled by default, but can still be enabled.

It was discovered that the memcached connections using UDP transport protocol can be abused for efficient traffic amplification distributed denial of service (DDoS) attacks. A remote attacker could send a malicious UDP request using a spoofed source IP address of a target system to memcached, causing it to send a significantly larger response to the target. (CVE-2018-1000115 )


Affected Packages:

memcached


Issue Correction:
Run yum update memcached to update your system.

New Packages:
i686:
    memcached-1.4.15-10.15.amzn1.i686
    memcached-debuginfo-1.4.15-10.15.amzn1.i686
    memcached-devel-1.4.15-10.15.amzn1.i686

src:
    memcached-1.4.15-10.15.amzn1.src

x86_64:
    memcached-debuginfo-1.4.15-10.15.amzn1.x86_64
    memcached-devel-1.4.15-10.15.amzn1.x86_64
    memcached-1.4.15-10.15.amzn1.x86_64