CVE-2021-32550: apport read_file() function could follow maliciously constructed symbolic links
First published: Tue May 25 2021(Updated: )
It was discovered that read_file() 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.
Credit: security@ubuntu.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Ubuntu | =18.04 | |
| Ubuntu | =20.04 | |
| Ubuntu | =20.10 | |
| Ubuntu | =21.04 | |
| Ubuntu | =21.10 |
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Frequently Asked Questions
What is the severity of CVE-2021-32550?
CVE-2021-32550 is classified as a medium severity vulnerability.
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.
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.
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.
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.
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