Auth bypass in Canonical Aptdaemon
CVE-2020-27349
Aptdaemon performed policykit checks after interacting with potentially untrusted files with elevated privileges. This affected versions prior to 1.1.1+bzr982-0ubuntu34.1, 1.1.1+bzr982-0ubuntu32.3, 1.1.1+bzr982-0ubuntu19.5, 1.1.1+bzr982-0ubuntu14.5.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.003 (19.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 20th percentile — 19.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Canonical Aptdaemon — versions 1.1.1+bzr982-0ubuntu14, 1.1.1+bzr982-0ubuntu19, 1.1.1+bzr982-0ubuntu32
- Canonical Ubuntu Linux — versions 16.04, 18.04, 20.04
Weakness classification (CWE)
References
- usn.ubuntu.com/usn/usn-4664-1 (Patch, Third Party Advisory)
- bugs.launchpad.net/ubuntu/+source/apt/+bug/1899193 (Broken Link)
Frequently asked questions
- What is CVE-2020-27349?
- CVE-2020-27349 is a medium-severity vulnerability in Canonical Aptdaemon, classified under Missing Authorization. CVSS score: 5.5/10. Published 2020-12-09.
- How severe is CVE-2020-27349?
- Medium severity. CVSS v3 base score is 5.5 out of 10.