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AUSCERT External Security Bulletin Redistribution
ESB-2020.3334
USN-4552-1: Pam-python vulnerability
29 September 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: pam-python
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Root Compromise -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2019-16729
Reference: ESB-2019.4428
ESB-2019.4006
Original Bulletin:
https://usn.ubuntu.com/4552-1/
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USN-4552-1: Pam-python vulnerability
28 September 2020
Pam-python could be made to crash or run programs as an administrator
if certain environment variables are set.
Releases
o Ubuntu 18.04 LTS
Packages
o pam-python - Enables PAM modules to be written in Python
Details
Malte Kraus discovered that Pam-python mishandled certain environment
variables.
A local attacker could potentially use this vulnerability to execute programs
as root.
Update instructions
The problem can be corrected by updating your system to the following package
versions:
Ubuntu 18.04
o libpam-python - 1.0.6-1.1+deb10u1build0.18.04.1
In general, a standard system update will make all the necessary changes.
References
o CVE-2019-16729
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