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AUSCERT External Security Bulletin Redistribution
ESB-2021.0094
USN-4668-4: python-apt vulnerability
12 January 2021
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AusCERT Security Bulletin Summary
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Product: python-apt
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Denial of Service -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2020-27351
Reference: ESB-2020.4353
ESB-2020.4346.3
Original Bulletin:
https://ubuntu.com/security/notices/USN-4668-4
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USN-4668-4: python-apt vulnerability
11 January 2021
python-apt could be made to crash if it opened a specially crafted file.
Releases
o Ubuntu 14.04 ESM
Packages
o python-apt - Python interface to libapt-pkg
Details
USN-4668-1 fixed a vulnerability in python-apt. This update provides
the corresponding update for Ubuntu 14.04 ESM.
Original advisory details:
Kevin Backhouse discovered that python-apt incorrectly handled resources. A
local attacker could possibly use this issue to cause python-apt to consume
resources, leading to a denial of service.
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 14.04
o python-apt - 0.9.3.5ubuntu3+esm4
o python3-apt - 0.9.3.5ubuntu3+esm4
In general, a standard system update will make all the necessary changes.
References
o CVE-2020-27351
Related notices
o USN-4668-1 : python3-apt, python-apt
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