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    Debian: DSA-3420-1: bind9 security update

    Date 15 Dec 2015
    240
    Posted By LinuxSecurity Advisories
    It was discovered that the BIND DNS server does not properly handle the parsing of incoming responses, allowing some records with an incorrect class to be accepted by BIND instead of being rejected as malformed. This can trigger a REQUIRE assertion failure when those records are
    
    - -------------------------------------------------------------------------
    Debian Security Advisory DSA-3420-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                     Salvatore Bonaccorso
    December 15, 2015                     https://www.debian.org/security/faq
    - -------------------------------------------------------------------------
    
    Package        : bind9
    CVE ID         : CVE-2015-8000
    Debian Bug     : 808081
    
    It was discovered that the BIND DNS server does not properly handle the
    parsing of incoming responses, allowing some records with an incorrect
    class to be accepted by BIND instead of being rejected as malformed.
    This can trigger a REQUIRE assertion failure when those records are
    subsequently cached. A remote attacker can exploit this flaw to cause a
    denial of service against servers performing recursive queries.
    
    For the oldstable distribution (wheezy), this problem has been fixed
    in version 1:9.8.4.dfsg.P1-6+nmu2+deb7u8.
    
    For the stable distribution (jessie), this problem has been fixed in
    version 1:9.9.5.dfsg-9+deb8u4.
    
    We recommend that you upgrade your bind9 packages.
    
    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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