Bug 1717825 (CVE-2019-12210) - CVE-2019-12210 pam-u2f: file descriptor not being closed with debug configuration leads to information disclosure
Summary: CVE-2019-12210 pam-u2f: file descriptor not being closed with debug configura...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2019-12210
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1717826
Blocks:
TreeView+ depends on / blocked
 
Reported: 2019-06-06 09:37 UTC by Marian Rehak
Modified: 2019-09-29 15:14 UTC (History)
1 user (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2019-06-10 10:56:52 UTC
Embargoed:

Attachments (Terms of Use)

Description Marian Rehak 2019-06-06 09:37:45 UTC 
If pam-u2f 1.0.7 is configured with debug and a custom debug log file is set using debug_file, file descriptor is not closed when a new process is spawned. This leads to the file descriptor being inherited into the child process. Which can leak sensitive information or be used to fill the disk or plant misinformation.

Upstream commit:

https://github.com/Yubico/pam-u2f/commit/18b1914e32b74ff52000f10e97067e841e5fff62
Comment 1 Marian Rehak 2019-06-06 09:37:53 UTC 
Created pam-u2f tracking bugs for this issue:

Affects: fedora-all [bug 1717826]
Comment 2 Product Security DevOps Team 2019-06-10 10:56:52 UTC 
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.
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