What is CVE-2012-0955?

CVE-2012-0955 is a medium-severity vulnerability in Canonical Software-Properties, classified under Improper Certificate Validation. CVSS score: 6.8/10. Published 2020-12-02.

How severe is CVE-2012-0955?

Medium severity. CVSS v3 base score is 6.8 out of 10.

Vulnerability in Canonical Software-Properties

CVE-2012-0955

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.

Vulnerability class: Improper Certificate Validation

EPSS: 0.006 (45.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N.

Affected products

Canonical Software-properties — versions 0.92

Weakness classification (CWE)

CWE-295 — Improper Certificate Validation

References

security@ubuntu.com (x_refsource_UBUNTU, Exploit, vendor-advisory, Vendor Advisory)
security@ubuntu.com (x_refsource_UBUNTU, vendor-advisory, Patch, Vendor Advisory)

Frequently asked questions

What is CVE-2012-0955?: CVE-2012-0955 is a medium-severity vulnerability in Canonical Software-Properties, classified under Improper Certificate Validation. CVSS score: 6.8/10. Published 2020-12-02.
How severe is CVE-2012-0955?: Medium severity. CVSS v3 base score is 6.8 out of 10.