CVE-2021-32550: 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-14 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-2021-32550?
CVE-2021-32550 is classified as a medium severity vulnerability.
2
How do I fix CVE-2021-32550?
To fix CVE-2021-32550, update the apport package to the latest version that contains the security patch.
3
Which systems are affected by CVE-2021-32550?
CVE-2021-32550 affects Ubuntu Linux versions 18.04, 20.04, 20.10, 21.04, and 21.10.
4
What kind of data exposure does CVE-2021-32550 cause?
CVE-2021-32550 can expose private data to other local users through the improper handling of symbolic links.
5
Is there a workaround for CVE-2021-32550?
Yes, temporarily avoiding the use of the openjdk-14 package until a patch is applied can serve as a workaround for CVE-2021-32550.