Description
software-properties was vulnerable to a person-in-the-middle attack due to incorrect TLS certificate validation in softwareproperties/ppa.py. software-properties didn't check TLS certificates under python2 and only checked certificates under python3 if a valid certificate bundle was provided. Fixed in software-properties version 0.92.
References (2)
Core 2
Core References
Exploit, Vendor Advisory vendor-advisory
x_refsource_ubuntu
https://launchpad.net/bugs/1036839
Patch, Vendor Advisory vendor-advisory
x_refsource_ubuntu
https://code.launchpad.net/~cyphermox/software-properties/lp1036839/+merge/119753
Scores
CVSS v3
6.8
EPSS
0.0061
EPSS Percentile
44.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Details
CWE
CWE-295
Status
published
Products (1)
canonical/software-properties
< 0.92
Published
Dec 02, 2020
Tracked Since
Feb 18, 2026