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AUSCERT External Security Bulletin Redistribution
ESB-2022.0554
USN-4754-5: Python vulnerability
9 February 2022
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AusCERT Security Bulletin Summary
---------------------------------
Product: Python
Publisher: Ubuntu
Operating System: Ubuntu
Resolution: Patch/Upgrade
CVE Names: CVE-2021-3177 CVE-2020-27619
Reference: ESB-2021.3812
ESB-2021.2904
Original Bulletin:
https://ubuntu.com/security/notices/USN-4754-5
Comment: CVSS (Max): 9.8 CVE-2021-3177 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
CVSS Source: NVD
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USN-4754-5: Python vulnerability
08 February 2022
Python could be made to execute arbitrary code or denial of service if it
received a specially crafted input.
Releases
o Ubuntu 14.04 ESM
Packages
o python2.7 - An interactive high-level object-oriented language
Details
USN-4754-1 fixed vulnerabilities in Python. Because of a regression, a
subsequent update removed the fix for CVE-2021-3177 . This update reinstates
the security fix for CVE-2021-3177 in Ubuntu 14.04 ESM.
Original advisory details:
It was discovered that Python incorrectly handled certain inputs.
An attacker could possibly use this issue to execute arbitrary code
or cause a denial of service. ( CVE-2020-27619 , CVE-2021-3177 )
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 14.04
o python2.7 - 2.7.6-8ubuntu0.6+esm10
Available with UA Infra or UA Desktop
o python2.7-minimal - 2.7.6-8ubuntu0.6+esm10
Available with UA Infra or UA Desktop
In general, a standard system update will make all the necessary changes.
References
o CVE-2021-3177
Related notices
o USN-4754-1 : libpython3.6-dev, libpython3.5-dev, python3.8-venv,
libpython3.5-testsuite, python3.4-venv, libpython2.7, python2.7-doc,
python3.8-dev, python3.8-minimal, python2.7-minimal, libpython3.5-stdlib,
libpython3.6, python3.8, python3.6-dev, libpython2.7-testsuite,
python3.8-examples, python3.5-venv, python3.4, python3.5-examples,
python3.5, python3.6-examples, python3.4-minimal, libpython3.4-minimal,
idle-python3.5, python3.5-dev, python2.7-examples, libpython3.8-testsuite,
libpython3.8, python3.5-doc, python3.6, libpython2.7-dev, python3.8-doc,
libpython2.7-minimal, libpython3.4-dev, libpython3.8-dev, python3.4-dev,
python2.7, python2.7-dev, libpython3.6-minimal, libpython2.7-stdlib,
libpython3.4-stdlib, libpython3.4-testsuite, python3.6-doc,
python3.4-examples, libpython3.8-stdlib, idle-python3.6, python3.6-minimal,
idle-python3.4, libpython3.6-testsuite, libpython3.5-minimal,
libpython3.6-stdlib, python3.6-venv, libpython3.8-minimal,
python3.5-minimal, libpython3.5, idle-python2.7, idle-python3.8,
libpython3.4, python3.4-doc
o USN-4754-3 : libpython3.7-testsuite, python3.8-venv, libpython3.7-minimal,
python3.7-venv, python3.7-minimal, libpython2.7, python2.7-doc,
python3.8-dev, python3.8-minimal, python2.7-minimal, python3.7-examples,
python3.7-dev, python3.7, python3.8, libpython2.7-testsuite,
libpython3.7-dev, python3.8-examples, python3.7-doc, python2.7-examples,
libpython3.8-testsuite, libpython3.8, libpython2.7-dev,
libpython2.7-minimal, libpython3.8-dev, python2.7, python2.7-dev,
libpython2.7-stdlib, idle-python3.7, libpython3.7, libpython3.8-minimal,
libpython3.8-stdlib, idle-python2.7, libpython3.7-stdlib, idle-python3.8
o USN-4754-4 : libpython2.7-dev, libpython2.7-minimal, libpython2.7,
python2.7-doc, python2.7-minimal, python2.7, python2.7-dev,
python2.7-examples, libpython2.7-stdlib, idle-python2.7,
libpython2.7-testsuite
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