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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 python3Upgrade python2Upgrade python2-tkinter | Apr 24, 2019 | Sep 25, 2018 |
| Amazon Linux Ami 2 | — | Upgrade python3-develUpgrade python3Upgrade python3-tkinterUpgrade python3-toolsUpgrade python3-debuginfoUpgrade python3-libsUpgrade python3-testUpgrade python3-debug | Apr 27, 2020 | Sep 25, 2018 |
| Amazon_linux | — | Upgrade python36Upgrade python34Upgrade python35 | Nov 8, 2018 | Sep 24, 2018 |
| Centos_linux | — | Upgrade python-develUpgrade python-toolsUpgrade python-testUpgrade tkinterUpgrade python-libsUpgrade python-debugUpgrade python-debuginfoUpgrade python | 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 pythonUpgrade python-libsUpgrade tkinterUpgrade python-devel | Sep 25, 2019 | Sep 25, 2018 |
| Huawei Euleros 2_0_sp5 | — | Upgrade pythonUpgrade python-develUpgrade python-libsUpgrade tkinter | May 7, 2019 | Sep 24, 2018 |
| Oracle Solaris | — | Upgrade 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-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-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-35 to version 3.5.7-11.4.12.0.1.3.0 on Solaris 11.4Upgrade runtime/python-27/tests to version 2.7.16-0.175.3.36.0.26.0 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-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 runtime/python-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 python-debugUpgrade python-develUpgrade python-toolsUpgrade pythonUpgrade python-libsUpgrade tkinterUpgrade python-test | Jul 21, 2020 | Sep 22, 2018 |
| Redhat_linux | — | Upgrade python-testUpgrade python-develUpgrade python-debuginfoUpgrade python-toolsUpgrade tkinterUpgrade python-libsUpgrade pythonUpgrade python-debugNo solution exists | Aug 7, 2019 | Sep 25, 2018 |
| Suse | — | Upgrade python-cursesUpgrade python3-base-32bitUpgrade python-develUpgrade python3-32bitUpgrade python-xmlUpgrade libpython3_4m1_0Upgrade python-docUpgrade libpython3_6m1_0-32bitUpgrade python3-baseUpgrade libpython3_6m1_0Upgrade python3-tkUpgrade python3-toolsUpgrade pythonUpgrade python-baseUpgrade libpython2_6-1_0Upgrade python3Upgrade python3-dbmUpgrade python-x86Upgrade libpython2_7-1_0-32bitUpgrade python3-cursesUpgrade python-base-32bitUpgrade python3-testsuiteUpgrade libpython2_6-1_0-x86Upgrade python-idleUpgrade python3-idleUpgrade python-32bitUpgrade libpython2_7-1_0Upgrade python3-develUpgrade python-tkUpgrade python-gdbmUpgrade python-doc-pdfUpgrade python-demoUpgrade python-base-x86Upgrade libpython2_6-1_0-32bitUpgrade libpython3_4m1_0-32bit | Oct 17, 2018 | Sep 24, 2018 |
| Ubuntu | — | Upgrade python3.4-minimalUpgrade python3.5-minimal (Ubuntu Pro)Upgrade python3.5 (Ubuntu Pro)Upgrade python3.4Upgrade python2.7-minimalUpgrade python3.5-minimalUpgrade python3.5Upgrade python2.7 | 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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