ArchLinux: 201901-15: haproxy: denial of service

    Date27 Jan 2019
    Posted ByAnthony Pell
    The package haproxy before version 1.9.0-1 is vulnerable to denial of service.
    Arch Linux Security Advisory ASA-201901-15
    Severity: Medium
    Date    : 2019-01-24
    CVE-ID  : CVE-2018-20102 CVE-2018-20103
    Package : haproxy
    Type    : denial of service
    Remote  : Yes
    Link    :
    The package haproxy before version 1.9.0-1 is vulnerable to denial of
    Upgrade to 1.9.0-1.
    # pacman -Syu "haproxy>=1.9.0-1"
    The problems have been fixed upstream in version 1.9.0.
    - CVE-2018-20102 (denial of service)
    A stack-based out-of-bounds read has been found in HAProxy before
    1.8.15, in the dns_validate_dns_response() function in dns.c, where it
    can be triggered by a crafted DNS packet.
    - CVE-2018-20103 (denial of service)
    A stack-exhaustion issue has been found in HAProxy before 1.8.15, in
    the dns_read_name() function in dns.c, where an infinite recursion can
    be triggered via a crafted DNS packet.
    A remote attacker is able to crash the server with a specially crafted
    DNS packet.
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