CVE-2012-0955 software-properties incorrectly validated TLS certificates
Attackers can intercept traffic via man-in-the-middle attacks due to improper TLS certificate validation in Ubuntu's software-properties tool.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2012-0955?
CVE-2012-0955 is a medium-severity vulnerability in Canonical software-properties, published on 2 Dec 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official 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.
Weakness: CWE-295
Which versions are affected by CVE-2012-0955?
It affects 1 product.
Products include Canonical Software-Properties.
How do I fix CVE-2012-0955?
Upgrade to a fixed version.
Is CVE-2012-0955 being exploited?
There is no known exploitation of CVE-2012-0955 in the wild and no public exploit code.
Other vulnerabilities in Canonical software-properties
Sources
Also known as DEBIAN-CVE-2012-0955, GHSA-47v9-xw5c-g56f.