CVE-2021-32554: apport read_file() function could follow maliciously constructed symbolic links
Published Jun 12, 2021
·Updated
It was discovered that readfile() in apport/hookutils.py would follow symbolic links or open FIFOs. When this function is used by the xorg package apport hooks, it could expose private data to other local users.
Affected Software
5 affected components
Ubuntu=18.04
Ubuntu=20.04
Ubuntu=20.10
Ubuntu=21.04
Ubuntu=21.10
Event History
Jun 12, 2021
CVE Published
via MITRE·03:40 AM
Data Sourced
via MITRE·03:40 AM
DescriptionSeverityWeakness
Frequently Asked Questions
1
What is the vulnerability ID for this issue?
The vulnerability ID for this issue is CVE-2021-32554.
2
What is the severity of CVE-2021-32554?
The severity of CVE-2021-32554 is high.
3
Which software versions are affected by CVE-2021-32554?
The following versions of Canonical Ubuntu Linux are affected: 18.04, 20.04, 20.10, 21.04, and 21.10.
4
What is the description of CVE-2021-32554?
CVE-2021-32554 is a vulnerability in the read_file() function in apport/hookutils.py that could expose private data to other local users when used by the xorg package apport hooks.
5
How can I fix CVE-2021-32554?
To fix CVE-2021-32554, update to the latest version of the apport package.