CVE-2021-32556 is a vulnerability in Canonical Apport
Published on June 12, 2021
apport get_modified_conffiles() function command injection
It was discovered that the get_modified_conffiles() function in backends/packaging-apt-dpkg.py allowed injecting modified package names in a manner that would confuse the dpkg(1) call.
Vulnerability Analysis
CVE-2021-32556 is exploitable with local system access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a small impact on integrity and availability.
Weakness Type
What is a Shell injection Vulnerability?
The software constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.
CVE-2021-32556 has been classified to as a Shell injection vulnerability or weakness.
Products Associated with CVE-2021-32556
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Affected Versions
Canonical apport:- Version 2.20.1 and below 2.20.1-0ubuntu2.30+esm1 is affected.
- Version 2.20.9 and below 2.20.9-0ubuntu7.24 is affected.
- Version 2.20.11-0ubuntu27 and below 2.20.11-0ubuntu27.18 is affected.
- Version 2.20.11-0ubuntu50 and below 2.20.11-0ubuntu50.7 is affected.
- Version 2.20.11-0ubuntu65 and below 2.20.11-0ubuntu65.1 is affected.
- Version 2.14.1-0ubuntu3 and below 2.14.1-0ubuntu3.29+esm7 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.