CVE-2020-27349: aptdaemon performed policykit permissions checks too late
First published: Tue Dec 08 2020(Updated: )
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.
Credit: security@ubuntu.com security@ubuntu.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/aptdaemon | ||
| Ubuntu Linux | =16.04 | |
| Ubuntu Linux | =18.04 | |
| Ubuntu Linux | =20.04 | |
| Ubuntu Linux | =20.10 | |
| Ubuntu | =16.04 | |
| Ubuntu | =18.04 | |
| Ubuntu | =20.04 | |
| Ubuntu | =20.10 |
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Reference Links
- https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1899193
- https://usn.ubuntu.com/usn/usn-4664-1
- https://launchpad.net/bugs/cve/CVE-2020-27349
- https://security-tracker.debian.org/tracker/CVE-2020-27349
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27349
- https://nvd.nist.gov/vuln/detail/CVE-2020-27349
- https://ubuntu.com/security/CVE-2020-27349
Frequently Asked Questions
What is the severity of CVE-2020-27349?
CVE-2020-27349 is considered a high severity vulnerability due to policykit checks being performed after interacting with untrusted files with elevated privileges.
How do I fix CVE-2020-27349?
To fix CVE-2020-27349, upgrade aptdaemon to version 1.1.1+bzr982-0ubuntu34.1 or later.
Which Ubuntu versions are affected by CVE-2020-27349?
CVE-2020-27349 affects Ubuntu versions 16.04, 18.04, 20.04, and 20.10 that have aptdaemon versions prior to the specified fixed versions.
What software component is impacted by CVE-2020-27349?
The software component impacted by CVE-2020-27349 is the aptdaemon package.
What potential exploit can occur due to CVE-2020-27349?
Due to CVE-2020-27349, an attacker could leverage elevated privileges to perform unauthorized actions on the system.
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