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Vulnerability details: VCID-tw36-yrrr-aaam
Vulnerability ID VCID-tw36-yrrr-aaam
Aliases CVE-2018-14647
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 9.0
Risk 4.5
Affected and Fixed Packages Package Details
Weaknesses (3)
CWE-909 Missing Initialization of Resource
CWE-665 Improper Initialization
CWE-335 Incorrect Usage of Seeds in Pseudo-Random Number Generator (PRNG)
System Score Found at
generic_textual Medium http://people.canonical.com/~ubuntu-security/cve/2018/CVE-2018-14647.html
rhas Important https://access.redhat.com/errata/RHSA-2019:1260
rhas Moderate https://access.redhat.com/errata/RHSA-2020:1268
rhas Moderate https://access.redhat.com/errata/RHSA-2020:1346
rhas Moderate https://access.redhat.com/errata/RHSA-2020:1462
cvssv3 5.3 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-14647.json
epss 0.00516 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.00516 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.00516 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.00523 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.00630 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.00630 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.00630 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
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epss 0.00630 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
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epss 0.00630 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
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epss 0.00630 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.00851 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.00851 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.00851 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
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epss 0.00851 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.00851 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.00851 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.00851 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
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epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
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epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
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epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
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epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.013 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
epss 0.01756 https://api.first.org/data/v1/epss?cve=CVE-2018-14647
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-1000158
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1000802
generic_textual Low https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1060
generic_textual Low https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1061
generic_textual Medium https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-14647
cvssv3 5.3 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1 9.8 https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0@%3Cissues.bookkeeper.apache.org%3E
generic_textual CRITICAL https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0@%3Cissues.bookkeeper.apache.org%3E
cvssv2 5.0 https://nvd.nist.gov/vuln/detail/CVE-2018-14647
cvssv3 7.5 https://nvd.nist.gov/vuln/detail/CVE-2018-14647
cvssv3.1 7.5 https://nvd.nist.gov/vuln/detail/CVE-2018-14647
generic_textual Medium https://ubuntu.com/security/notices/USN-3817-1
generic_textual Medium https://ubuntu.com/security/notices/USN-3817-2
generic_textual Medium https://usn.ubuntu.com/usn/usn-3817-1
generic_textual Medium https://usn.ubuntu.com/usn/usn-3817-2
Reference id Reference type URL
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00040.html
http://people.canonical.com/~ubuntu-security/cve/2018/CVE-2018-14647.html
https://access.redhat.com/errata/RHSA-2019:2030
https://access.redhat.com/errata/RHSA-2019:3725
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-14647.json
https://api.first.org/data/v1/epss?cve=CVE-2018-14647
https://bugs.python.org/issue34623
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14647
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-1000158
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1000802
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1060
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1061
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-14647
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0@%3Cissues.bookkeeper.apache.org%3E
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://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RBJCB2HWOJLP3L7CUQHJHNBHLSVOXJE5/
https://ubuntu.com/security/notices/USN-3817-1
https://ubuntu.com/security/notices/USN-3817-2
https://usn.ubuntu.com/3817-1/
https://usn.ubuntu.com/3817-2/
https://usn.ubuntu.com/usn/usn-3817-1
https://usn.ubuntu.com/usn/usn-3817-2
https://www.debian.org/security/2018/dsa-4306
https://www.debian.org/security/2018/dsa-4307
http://www.securityfocus.com/bid/105396
http://www.securitytracker.com/id/1041740
921039 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=921039
cpe:2.3:a:python:python:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:python:python:*:*:*:*:*:*:*:*
cpe:2.3:a:python:python:3.7.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:python:python:3.7.0:*:*:*:*:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
CVE-2018-14647 https://nvd.nist.gov/vuln/detail/CVE-2018-14647
RHBA-2020:0547 https://bugzilla.redhat.com/show_bug.cgi?id=1631822
RHSA-2019:1260 https://access.redhat.com/errata/RHSA-2019:1260
RHSA-2020:1268 https://access.redhat.com/errata/RHSA-2020:1268
RHSA-2020:1346 https://access.redhat.com/errata/RHSA-2020:1346
RHSA-2020:1462 https://access.redhat.com/errata/RHSA-2020:1462
USN-6891-1 https://usn.ubuntu.com/6891-1/
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2018-14647.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://lists.apache.org/thread.html/r1b103833cb5bc8466e24ff0ecc5e75b45a705334ab6a444e64e840a0@%3Cissues.bookkeeper.apache.org%3E
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2018-14647
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2018-14647
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2018-14647
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.76561
EPSS Score 0.00516
Published At Dec. 17, 2024, midnight
Date Actor Action Source VulnerableCode Version
There are no relevant records.