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    Debian: DSA-4752-1: bind9 security update

    Date 27 Aug 2020
    326
    Posted By LinuxSecurity Advisories
    Several vulnerabilities were discovered in BIND, a DNS server implementation. CVE-2020-8619
    
    - -------------------------------------------------------------------------
    Debian Security Advisory DSA-4752-1                   This email address is being protected from spambots. You need JavaScript enabled to view it.
    https://www.debian.org/security/                     Salvatore Bonaccorso
    August 27, 2020                       https://www.debian.org/security/faq
    - -------------------------------------------------------------------------
    
    Package        : bind9
    CVE ID         : CVE-2020-8619 CVE-2020-8622 CVE-2020-8623 CVE-2020-8624
    Debian Bug     : 966497
    
    Several vulnerabilities were discovered in BIND, a DNS server
    implementation.
    
    CVE-2020-8619
    
        It was discovered that an asterisk character in an empty non-
        terminal can cause an assertion failure, resulting in denial
        of service.
    
    CVE-2020-8622
    
        Dave Feldman, Jeff Warren, and Joel Cunningham reported that a
        truncated TSIG response can lead to an assertion failure, resulting
        in denial of service.
    
    CVE-2020-8623
    
        Lyu Chiy reported that a flaw in the native PKCS#11 code can lead
        to a remotely triggerable assertion failure, resulting in denial
        of service.
    
    CVE-2020-8624
    
        Joop Boonen reported that update-policy rules of type "subdomain"
        are enforced incorrectly, allowing updates to all parts of the zone
        along with the intended subdomain.
    
    For the stable distribution (buster), these problems have been fixed in
    version 1:9.11.5.P4+dfsg-5.1+deb10u2.
    
    We recommend that you upgrade your bind9 packages.
    
    For the detailed security status of bind9 please refer to its security
    tracker page at:
    https://security-tracker.debian.org/tracker/bind9
    
    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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