CVE-2012-0955

Public Exploit
software-properties incorrectly validated TLS certificates

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.

Category

6.8
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.12%
Vendor Advisory launchpad.net Vendor Advisory launchpad.net
Affected: Canonical software-properties
Published at:
Updated at:

References

Link Tags
https://launchpad.net/bugs/1036839 vendor advisory exploit
https://code.launchpad.net/~cyphermox/software-properties/lp1036839/+merge/119753 patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2012-0955?
CVE-2012-0955 has been scored as a medium severity vulnerability.
How to fix CVE-2012-0955?
To fix CVE-2012-0955, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2012-0955 being actively exploited in the wild?
It is possible that CVE-2012-0955 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2012-0955?
CVE-2012-0955 affects Canonical software-properties.
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