What is CVE-2019-12210?

CVE-2019-12210 is a vulnerability in Yubico pam-u2f 1.0.7 that allows a child process to read from and write to a debug log file.

How severe is CVE-2019-12210?

CVE-2019-12210 has a severity rating of 8.1 (High).

Which software version is affected by CVE-2019-12210?

The vulnerability affects Yubico pam-u2f version 1.0.7.

How can I fix CVE-2019-12210?

To fix CVE-2019-12210, it is recommended to update Yubico pam-u2f to a version that addresses the vulnerability.

Where can I find more information about CVE-2019-12210?

You can find more information about CVE-2019-12210 on the following references: [Reference 1](http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00012.html), [Reference 2](http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00018.html), [Reference 3](http://www.openwall.com/lists/oss-security/2019/06/05/1)

Vulnerability/
CVE-2019-12210

high

8.1

4/6/2019

4/8/2024

CVE-2019-12210

First published: Tue Jun 04 2019(Updated: )

In Yubico pam-u2f 1.0.7, when configured with debug and a custom debug log file is set using debug_file, that file descriptor is not closed when a new process is spawned. This leads to the file descriptor being inherited into the child process; the child process can then read from and write to it. This can leak sensitive information and also, if written to, be used to fill the disk or plant misinformation.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
Yubico pam-u2f	=1.0.7

Remedy

https://github.com/Yubico/pam-u2f/commit/18b1914e32b74ff52000f10e97067e841e5fff62

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Reference Links

Frequently Asked Questions

What is CVE-2019-12210?
CVE-2019-12210 is a vulnerability in Yubico pam-u2f 1.0.7 that allows a child process to read from and write to a debug log file.
How severe is CVE-2019-12210?
CVE-2019-12210 has a severity rating of 8.1 (High).
Which software version is affected by CVE-2019-12210?
The vulnerability affects Yubico pam-u2f version 1.0.7.
How can I fix CVE-2019-12210?
To fix CVE-2019-12210, it is recommended to update Yubico pam-u2f to a version that addresses the vulnerability.
Where can I find more information about CVE-2019-12210?
You can find more information about CVE-2019-12210 on the following references: [Reference 1](http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00012.html), [Reference 2](http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00018.html), [Reference 3](http://www.openwall.com/lists/oss-security/2019/06/05/1)

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vendor/yubico
canonical/yubico pam-u2f
version/yubico pam-u2f/1.0.7

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