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    CVE-2018-14647

    Python's elementtree C accelerator failed to initialise Expat's hash salt during initialization. This could make it easy to conduct denial of service attacks against Expat by constructing an XML document that would cause pathological hash collisions in Expat's internal data structures, consuming large amounts CPU and RAM. The vulnerability exists in Python versions 3.7.0, 3.6.0 through 3.6.6, 3.5.0 through 3.5.6, 3.4.0 through 3.4.9, 2.7.0 through 2.7.15.

    Published:Sep 22, 2018
    Last Modified:Nov 21, 2024
    EPS:Sep 25, 2018
    EPSS Score:0.01909
    CVSS Score:7.5

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Opensuse
    Product
    Leap
    Vendor
    Python
    Product
    Python
    Vendor
    Redhat
    Product
    Ansible Tower
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Enterprise Linux Desktop
    Vendor
    Redhat
    Product
    Enterprise Linux Server
    Vendor
    Redhat
    Product
    Enterprise Linux Workstation
    Vendor
    Redhat
    Product
    Rhel Aus
    Vendor
    Redhat
    Product
    Rhel E4s
    Vendor
    Redhat
    Product
    Rhel Eus
    Vendor
    Redhat
    Product
    Rhel Software Collections
    Vendor
    Redhat
    Product
    Rhel Tus

    Exploits

    No exploit reference

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    References

    http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html
    http://www.securityfocus.com/bid/105396
    http://www.securitytracker.com/id/1041740
    https://access.redhat.com/errata/RHSA-2019:1260
    https://access.redhat.com/errata/RHSA-2019:2030
    https://access.redhat.com/errata/RHSA-2019:3725
    https://bugs.python.org/issue34623
    https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14647
    https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0%40%3Cissues.bookkeeper.apache.org%3E
    https://lists.debian.org/debian-lts-announce/2019/06/msg00022.html
    https://lists.debian.org/debian-lts-announce/2019/06/msg00023.html
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RBJCB2HWOJLP3L7CUQHJHNBHLSVOXJE5/
    https://usn.ubuntu.com/3817-1/
    https://usn.ubuntu.com/3817-2/
    https://www.debian.org/security/2018/dsa-4306
    https://www.debian.org/security/2018/dsa-4307
    http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html
    http://www.securityfocus.com/bid/105396
    http://www.securitytracker.com/id/1041740
    https://access.redhat.com/errata/RHSA-2019:1260
    https://access.redhat.com/errata/RHSA-2019:2030
    https://access.redhat.com/errata/RHSA-2019:3725
    https://bugs.python.org/issue34623
    https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14647
    https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0%40%3Cissues.bookkeeper.apache.org%3E
    https://lists.debian.org/debian-lts-announce/2019/06/msg00022.html
    https://lists.debian.org/debian-lts-announce/2019/06/msg00023.html
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RBJCB2HWOJLP3L7CUQHJHNBHLSVOXJE5/
    https://usn.ubuntu.com/3817-1/
    https://usn.ubuntu.com/3817-2/
    https://www.debian.org/security/2018/dsa-4306
    https://www.debian.org/security/2018/dsa-4307

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High