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.
| 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-debugUpgrade python3-testUpgrade python3-debuginfoUpgrade python3-tkinterUpgrade python3-libsUpgrade python3-toolsUpgrade python3-develUpgrade python3 | Apr 27, 2020 | Sep 25, 2018 |
| Amazon_linux | — | Upgrade python36Upgrade python34Upgrade python35 | Nov 8, 2018 | Sep 24, 2018 |
| Centos_linux | — | Upgrade python-develUpgrade python-libsUpgrade tkinterUpgrade python-toolsUpgrade python-testUpgrade pythonUpgrade python-debuginfoUpgrade python-debug | Aug 28, 2019 | Sep 25, 2018 |
| Debian | — | Upgrade python2.7 | Sep 28, 2018 | Sep 24, 2018 |
| Huawei Euleros 2_0_sp2 | — | Upgrade tkinterUpgrade pythonUpgrade python-develUpgrade python-libs | Feb 22, 2019 | Sep 24, 2018 |
| Huawei Euleros 2_0_sp3 | — | Upgrade python-develUpgrade python-libsUpgrade pythonUpgrade tkinter | Sep 25, 2019 | Sep 25, 2018 |
| Huawei Euleros 2_0_sp5 | — | Upgrade pythonUpgrade python-libsUpgrade python-develUpgrade tkinter | 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 runtime/python-34 to version 3.4.10-0.175.3.36.0.26.0 on Solaris 11.3Upgrade library/python/tkinter-37 to version 3.7.4-11.4.12.0.1.3.0 on Solaris 11.4Upgrade library/python/tkinter-34 to version 3.4.10-11.4.12.0.1.3.0 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-27/tests 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 to version 2.7.16-11.4.12.0.1.3.0 on Solaris 11.4Upgrade library/python/tkinter-27 to version 2.7.16-0.175.3.36.0.26.0 on Solaris 11.3Upgrade 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 2.7.16-11.4.12.0.1.3.0 on Solaris 11.4Upgrade runtime/python-27 to version 2.7.16-0.175.3.36.0.26.0 on Solaris 11.3Upgrade runtime/python-35 to version 3.5.7-11.4.12.0.1.3.0 on Solaris 11.4 | Aug 21, 2019 | Sep 25, 2018 |
| Oracle_linux | — | Upgrade tkinterUpgrade pythonUpgrade python-testUpgrade python-libsUpgrade python-develUpgrade python-debugUpgrade python-tools | Jul 21, 2020 | Sep 22, 2018 |
| Redhat_linux | — | Upgrade python-toolsUpgrade python-debuginfoUpgrade python-develUpgrade tkinterUpgrade python-testUpgrade python-libsUpgrade pythonNo solution existsUpgrade python-debug | Aug 7, 2019 | Sep 25, 2018 |
| Suse | — | Upgrade python3-cursesUpgrade python3Upgrade libpython2_6-1_0Upgrade libpython3_4m1_0-32bitUpgrade libpython2_6-1_0-32bitUpgrade python-demoUpgrade python3-develUpgrade python3-idleUpgrade libpython2_7-1_0-32bitUpgrade python-baseUpgrade python-32bitUpgrade libpython2_6-1_0-x86Upgrade python3-dbmUpgrade libpython2_7-1_0Upgrade python-base-32bitUpgrade python-idleUpgrade python3-testsuiteUpgrade pythonUpgrade python3-toolsUpgrade python-base-x86Upgrade python-x86Upgrade python-doc-pdfUpgrade python-tkUpgrade python-gdbmUpgrade python3-baseUpgrade libpython3_4m1_0Upgrade python-develUpgrade python-xmlUpgrade python3-tkUpgrade python-cursesUpgrade python-docUpgrade python3-base-32bitUpgrade python3-32bitUpgrade libpython3_6m1_0Upgrade libpython3_6m1_0-32bit | Oct 17, 2018 | Sep 24, 2018 |
| Ubuntu | — | Upgrade python3.5Upgrade python2.7Upgrade python3.5-minimalUpgrade python3.4Upgrade python3.5 (Ubuntu Pro)Upgrade python3.4-minimalUpgrade python2.7-minimalUpgrade python3.5-minimal (Ubuntu Pro) | 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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