CVE-2018-14647

high
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Description

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.

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/[email protected]%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/[email protected]/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

Details

Source: MITRE

Published: 2018-09-25

Updated: 2020-07-29

Type: CWE-909

Risk Information

CVSS v2

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 3.9

Severity: HIGH

Tenable Plugins

View all (50 total)

IDNameProductFamilySeverity
143782SUSE SLES12 Security Update : python3 (SUSE-SU-2020:2699-1)NessusSuSE Local Security Checks
high
135459RHEL 7 : python (RHSA-2020:1462)NessusRed Hat Local Security Checks
critical
135247RHEL 7 : python (RHSA-2020:1346)NessusRed Hat Local Security Checks
critical
135089RHEL 7 : python (RHSA-2020:1268)NessusRed Hat Local Security Checks
critical
133259SUSE SLED15 / SLES15 Security Update : python (SUSE-SU-2020:0234-1) (BEAST) (httpoxy)NessusSuSE Local Security Checks
critical
133172openSUSE Security Update : python3 (openSUSE-2020-86) (BEAST) (httpoxy)NessusSuSE Local Security Checks
critical
133036SUSE SLED15 / SLES15 Security Update : python3 (SUSE-SU-2020:0114-1) (BEAST) (httpoxy)NessusSuSE Local Security Checks
critical
132508NewStart CGSL CORE 5.05 / MAIN 5.05 : python Multiple Vulnerabilities (NS-SA-2019-0229)NessusNewStart CGSL Local Security Checks
critical
129884NewStart CGSL CORE 5.04 / MAIN 5.04 : python Multiple Vulnerabilities (NS-SA-2019-0187)NessusNewStart CGSL Local Security Checks
critical
129212EulerOS 2.0 SP3 : python (EulerOS-SA-2019-2019)NessusHuawei Local Security Checks
critical
128333CentOS 7 : python (CESA-2019:2030)NessusCentOS Local Security Checks
critical
128254Scientific Linux Security Update : python on SL7.x x86_64 (20190806)NessusScientific Linux Local Security Checks
critical
128019SUSE SLES12 Security Update : python3 (SUSE-SU-2019:2053-2)NessusSuSE Local Security Checks
critical
127768SUSE SLED12 / SLES12 Security Update : python3 (SUSE-SU-2019:2053-1)NessusSuSE Local Security Checks
critical
127651RHEL 7 : python (RHSA-2019:2030)NessusRed Hat Local Security Checks
critical
126222Debian DLA-1834-1 : python2.7 security updateNessusDebian Local Security Checks
critical
125578EulerOS Virtualization for ARM 64 3.0.2.0 : python (EulerOS-SA-2019-1626)NessusHuawei Local Security Checks
high
124937EulerOS Virtualization 3.0.1.0 : python (EulerOS-SA-2019-1434)NessusHuawei Local Security Checks
critical
124735EulerOS Virtualization 2.5.3 : python (EulerOS-SA-2019-1357)NessusHuawei Local Security Checks
high
124624EulerOS 2.0 SP5 : python (EulerOS-SA-2019-1338)NessusHuawei Local Security Checks
critical
124470Fedora 30 : python2 / python2-docs (2019-0c91ce7b3c)NessusFedora Local Security Checks
high
122642openSUSE Security Update : python (openSUSE-2019-292)NessusSuSE Local Security Checks
high
122577Slackware 14.0 / 14.1 / 14.2 / current : python (SSA:2019-062-01)NessusSlackware Local Security Checks
high
122446SUSE SLED12 / SLES12 Security Update : python (SUSE-SU-2019:0482-1)NessusSuSE Local Security Checks
high
122382EulerOS 2.0 SP2 : python (EulerOS-SA-2019-1055)NessusHuawei Local Security Checks
high
122026Photon OS 2.0: Python2 PHSA-2019-2.0-0118NessusPhotonOS Local Security Checks
high
122018Photon OS 1.0: Python2 PHSA-2019-1.0-0203NessusPhotonOS Local Security Checks
critical
120887Fedora 29 : python2 (2018-ee97fc9e81)NessusFedora Local Security Checks
high
120821Fedora 28 : python26 (2018-d3b53d81e6)NessusFedora Local Security Checks
high
120744Fedora 28 : python33 (2018-bbbd8cc3a6)NessusFedora Local Security Checks
high
120699Fedora 29 : python35 (2018-ac14dbf3fd)NessusFedora Local Security Checks
high
120640Fedora 29 : python3 (2018-9860917db0)NessusFedora Local Security Checks
high
120624Fedora 29 : python36 (2018-937e8a39c4)NessusFedora Local Security Checks
high
120539Fedora 28 : python35 (2018-7689556ab2)NessusFedora Local Security Checks
high
120526Fedora 29 : python26 (2018-71fd5db181)NessusFedora Local Security Checks
high
120458Fedora 28 : python3 (2018-5ed8fb9efa)NessusFedora Local Security Checks
high
120395Fedora 28 : python37 (2018-49d6e4bc3f)NessusFedora Local Security Checks
high
120386Fedora 29 : python34 (2018-4544e8dbc8)NessusFedora Local Security Checks
high
120315Fedora 28 : python2 (2018-2bf852f063)NessusFedora Local Security Checks
high
119812Amazon Linux AMI : python34 / python36 (ALAS-2018-1132)NessusAmazon Linux Local Security Checks
high
119786Amazon Linux 2 : python3 (ALAS-2018-1132)NessusAmazon Linux Local Security Checks
high
118954Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : Python vulnerabilities (USN-3817-1)NessusUbuntu Local Security Checks
critical
118896Fedora 27 : python33 (2018-28ea2290ad)NessusFedora Local Security Checks
high
118805Amazon Linux AMI : python35 (ALAS-2018-1101)NessusAmazon Linux Local Security Checks
high
118410Fedora 27 : python35 (2018-a2c1453607)NessusFedora Local Security Checks
high
118409Fedora 27 : python26 (2018-14526cbebe)NessusFedora Local Security Checks
high
118241Fedora 27 : python2 (2018-b6de5fc905)NessusFedora Local Security Checks
high
118171SUSE SLES11 Security Update : python (SUSE-SU-2018:3156-1)NessusSuSE Local Security Checks
high
117838Debian DSA-4307-1 : python3.5 - security updateNessusDebian Local Security Checks
critical
117812Debian DSA-4306-1 : python2.7 - security updateNessusDebian Local Security Checks
critical