Vulnerability Details 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.013
EPSS Ranking 78.6%
CVSS Severity
CVSS v3 Score 5.3
CVSS v2 Score 5.0
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
Products affected by CVE-2018-14647
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cpe:2.3:a:python:python:2.7.0
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cpe:2.3:a:python:python:2.7.1
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cpe:2.3:a:python:python:2.7.10
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cpe:2.3:a:python:python:2.7.11
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cpe:2.3:a:python:python:2.7.12
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cpe:2.3:a:python:python:2.7.13
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cpe:2.3:a:python:python:2.7.14
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cpe:2.3:a:python:python:2.7.15
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cpe:2.3:a:python:python:2.7.2
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cpe:2.3:a:python:python:2.7.3
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cpe:2.3:a:python:python:2.7.4
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cpe:2.3:a:python:python:2.7.5
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cpe:2.3:a:python:python:2.7.6
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cpe:2.3:a:python:python:2.7.7
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cpe:2.3:a:python:python:2.7.8
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cpe:2.3:a:python:python:2.7.9
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cpe:2.3:a:python:python:3.4.0
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cpe:2.3:a:python:python:3.4.1
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cpe:2.3:a:python:python:3.4.2
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cpe:2.3:a:python:python:3.4.3
-
cpe:2.3:a:python:python:3.4.4
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cpe:2.3:a:python:python:3.4.5
-
cpe:2.3:a:python:python:3.4.6
-
cpe:2.3:a:python:python:3.4.7
-
cpe:2.3:a:python:python:3.4.8
-
cpe:2.3:a:python:python:3.4.9
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cpe:2.3:a:python:python:3.5.0
-
cpe:2.3:a:python:python:3.5.1
-
cpe:2.3:a:python:python:3.5.2
-
cpe:2.3:a:python:python:3.5.3
-
cpe:2.3:a:python:python:3.5.4
-
cpe:2.3:a:python:python:3.5.5
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cpe:2.3:a:python:python:3.5.6
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cpe:2.3:a:python:python:3.6.0
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cpe:2.3:a:python:python:3.6.1
-
cpe:2.3:a:python:python:3.6.2
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cpe:2.3:a:python:python:3.6.3
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cpe:2.3:a:python:python:3.6.4
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cpe:2.3:a:python:python:3.6.5
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cpe:2.3:a:python:python:3.6.6
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cpe:2.3:a:python:python:3.7.0
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cpe:2.3:o:canonical:ubuntu_linux:12.04
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cpe:2.3:o:canonical:ubuntu_linux:14.04
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cpe:2.3:o:canonical:ubuntu_linux:16.04
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cpe:2.3:o:canonical:ubuntu_linux:18.04
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cpe:2.3:o:debian:debian_linux:8.0
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cpe:2.3:o:debian:debian_linux:9.0
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cpe:2.3:o:fedoraproject:fedora:30
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cpe:2.3:o:opensuse:leap:15.1
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cpe:2.3:o:redhat:enterprise_linux_desktop:7.0
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cpe:2.3:o:redhat:enterprise_linux_server:7.0
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cpe:2.3:o:redhat:enterprise_linux_workstation:7.0