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CWE

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CVE-2019-12210

Published: Jun 4, 2019

Modified: Aug 4, 2024

PUBLISHED

Description

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.

Vendor	Product	Versions
n/a	n/a	affected `n/a`

References

https://developers.yubico.com/pam-u2f/Release_Notes.html

x_refsource_CONFIRM

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

x_refsource_CONFIRM

[oss-security] 20190605 pam-u2f: CVE-2019-12210: debug_file file descriptor leak, CVE-2019-12209: symlink attack on u2f_keys leading to possible information leak

mailing-list

x_refsource_MLIST

openSUSE-SU-2019:1708

vendor-advisory

x_refsource_SUSE

openSUSE-SU-2019:1725

vendor-advisory

x_refsource_SUSE

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