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.
CVSS Details
- CVSS 3.1 Base Score: 7.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
- CVSS 3.0 Base Score: 5.3
- CVSS 3.0 Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alpine Linux | — | Upgrade python2Upgrade python2-tkinterUpgrade python3 | Apr 24, 2019 | Sep 25, 2018 |
| Amazon Linux Ami 2 | — | Upgrade python3-debuginfoUpgrade python3-libsUpgrade python3-toolsUpgrade python3-tkinterUpgrade python3-develUpgrade python3Upgrade python3-testUpgrade python3-debug | Apr 27, 2020 | Sep 25, 2018 |
| Amazon_linux | — | Upgrade python36Upgrade python35Upgrade python34 | Nov 8, 2018 | Sep 24, 2018 |
| Centos_linux | — | Upgrade pythonUpgrade python-debugUpgrade python-debuginfoUpgrade python-testUpgrade python-toolsUpgrade python-develUpgrade python-libsUpgrade tkinter | Aug 28, 2019 | Sep 25, 2018 |
| Debian | — | Upgrade python2.7 | Sep 28, 2018 | Sep 24, 2018 |
| Huawei Euleros 2_0_sp2 | — | Upgrade pythonUpgrade tkinterUpgrade python-develUpgrade python-libs | Feb 22, 2019 | Sep 24, 2018 |
| Huawei Euleros 2_0_sp3 | — | Upgrade python-develUpgrade tkinterUpgrade python-libsUpgrade python | Sep 25, 2019 | Sep 25, 2018 |
| Huawei Euleros 2_0_sp5 | — | Upgrade python-develUpgrade python-libsUpgrade tkinterUpgrade python | May 7, 2019 | Sep 24, 2018 |
| Oracle Solaris | — | Upgrade runtime/python-27/tests to version 2.7.16-0.175.3.36.0.26.0 on Solaris 11.3Upgrade library/python/tkinter-37 to version 3.7.4-11.4.12.0.1.3.0 on Solaris 11.4Upgrade runtime/python-35 to version 3.5.7-11.4.12.0.1.3.0 on Solaris 11.4Upgrade runtime/python-37 to version 3.7.4-11.4.12.0.1.3.0 on Solaris 11.4Upgrade library/python/tkinter-27 to version 2.7.16-0.175.3.36.0.26.0 on Solaris 11.3Upgrade runtime/python-27 to version 2.7.16-0.175.3.36.0.26.0 on Solaris 11.3Upgrade runtime/python-27 to version 2.7.16-11.4.12.0.1.3.0 on Solaris 11.4Upgrade library/python/tkinter-27 to version 2.7.16-11.4.12.0.1.3.0 on Solaris 11.4Upgrade library/python/tkinter-35 to version 3.5.7-11.4.12.0.1.3.0 on Solaris 11.4Upgrade runtime/python-27/tests to version 2.7.16-11.4.12.0.1.3.0 on Solaris 11.4Upgrade library/python/tkinter-34 to version 3.4.10-0.175.3.36.0.26.0 on Solaris 11.3Upgrade runtime/python-34 to version 3.4.10-11.4.12.0.1.3.0 on Solaris 11.4Upgrade runtime/python-34 to version 3.4.10-0.175.3.36.0.26.0 on Solaris 11.3Upgrade library/python/tkinter-34 to version 3.4.10-11.4.12.0.1.3.0 on Solaris 11.4 | Aug 21, 2019 | Sep 25, 2018 |
| Oracle_linux | — | Upgrade tkinterUpgrade python-testUpgrade pythonUpgrade python-libsUpgrade python-develUpgrade python-toolsUpgrade python-debug | Jul 21, 2020 | Sep 22, 2018 |
| Redhat_linux | — | Upgrade python-debugUpgrade pythonNo solution existsUpgrade tkinterUpgrade python-toolsUpgrade python-libsUpgrade python-testUpgrade python-develUpgrade python-debuginfo | Aug 7, 2019 | Sep 25, 2018 |
| Suse | — | Upgrade python-baseUpgrade libpython2_7-1_0-32bitUpgrade python-demoUpgrade libpython2_6-1_0-32bitUpgrade python3Upgrade python-idleUpgrade python-gdbmUpgrade python-base-x86Upgrade libpython2_6-1_0Upgrade python3-develUpgrade python-32bitUpgrade libpython3_4m1_0-32bitUpgrade pythonUpgrade python-tkUpgrade python3-idleUpgrade python-base-32bitUpgrade libpython2_6-1_0-x86Upgrade python3-cursesUpgrade python3-testsuiteUpgrade python-doc-pdfUpgrade libpython2_7-1_0Upgrade python3-toolsUpgrade python3-dbmUpgrade python-x86Upgrade libpython3_6m1_0-32bitUpgrade python-docUpgrade python-xmlUpgrade python-develUpgrade python3-base-32bitUpgrade python3-baseUpgrade python-cursesUpgrade python3-tkUpgrade libpython3_4m1_0Upgrade libpython3_6m1_0Upgrade python3-32bit | Oct 17, 2018 | Sep 24, 2018 |
| Ubuntu | — | Upgrade python3.5-minimal (Ubuntu Pro)Upgrade python3.5 (Ubuntu Pro)Upgrade python3.4-minimalUpgrade python3.4Upgrade python3.5-minimalUpgrade python2.7-minimalUpgrade python2.7Upgrade python3.5 | Nov 15, 2018 | Sep 24, 2018 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Sep 25, 2018 |
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