CVE-2021-32549: 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 openjdk-13 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 severity of CVE-2021-32549?
CVE-2021-32549 has been classified as a medium severity vulnerability.
2
How do I fix CVE-2021-32549?
To fix CVE-2021-32549, update your Ubuntu system to the latest patched version for the affected distributions.
3
Which Ubuntu versions are affected by CVE-2021-32549?
CVE-2021-32549 affects Ubuntu 18.04, 20.04, 20.10, 21.04, and 21.10.
4
What type of data can be exposed due to CVE-2021-32549?
CVE-2021-32549 can potentially expose private data to other local users if symbolic links or FIFOs are followed.
5
What component of Ubuntu is affected by CVE-2021-32549?
CVE-2021-32549 affects the read_file() function in apport/hookutils.py related to the openjdk-13 package.