Linux Security
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    Debian: DSA-4218-1: memcached security update

    Date 06 Jun 2018
    3477
    Posted By Anthony Pell
    Several vulnerabilities were discovered in memcached, a high-performance memory object caching system. The Common Vulnerabilities and Exposures project identifies the following problems:
    
    - -------------------------------------------------------------------------
    Debian Security Advisory DSA-4218-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                     Salvatore Bonaccorso
    June 06, 2018                         https://www.debian.org/security/faq
    - -------------------------------------------------------------------------
    
    Package        : memcached
    CVE ID         : CVE-2017-9951 CVE-2018-1000115 CVE-2018-1000127
    Debian Bug     : 868701 894404
    
    Several vulnerabilities were discovered in memcached, a high-performance
    memory object caching system. The Common Vulnerabilities and Exposures
    project identifies the following problems:
    
    CVE-2017-9951
    
        Daniel Shapira reported a heap-based buffer over-read in memcached
        (resulting from an incomplete fix for CVE-2016-8705) triggered by
        specially crafted requests to add/set a key and allowing a remote
        attacker to cause a denial of service.
    
    CVE-2018-1000115
    
        It was reported that memcached listens to UDP by default. A remote
        attacker can take advantage of it to use the memcached service as a
        DDoS amplifier.
    
        Default installations of memcached in Debian are not affected by
        this issue as the installation defaults to listen only on localhost.
        This update disables the UDP port by default. Listening on the UDP
        can be re-enabled in the /etc/memcached.conf (cf.
        /usr/share/doc/memcached/NEWS.Debian.gz).
    
    CVE-2018-1000127
    
        An integer overflow was reported in memcached, resulting in resource
        leaks, data corruption, deadlocks or crashes.
    
    For the oldstable distribution (jessie), these problems have been fixed
    in version 1.4.21-1.1+deb8u2.
    
    For the stable distribution (stretch), these problems have been fixed in
    version 1.4.33-1+deb9u1.
    
    We recommend that you upgrade your memcached packages.
    
    For the detailed security status of memcached please refer to its
    security tracker page at:
    https://security-tracker.debian.org/tracker/memcached
    
    Further information about Debian Security Advisories, how to apply
    these updates to your system and frequently asked questions can be
    found at: https://www.debian.org/security/
    
    Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it.
    

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