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Bug 1205217 - Do not access /dev/random in the selftest and use /dev/urandom instead of /dev/random if unavailable
Summary: Do not access /dev/random in the selftest and use /dev/urandom instead of /de...
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: libgcrypt
Version: 7.1
Hardware: Unspecified
OS: Unspecified
high
medium
Target Milestone: rc
: ---
Assignee: Tomas Mraz
QA Contact: Stanislav Zidek
URL:
Whiteboard:
: 1189448 (view as bug list)
Depends On:
Blocks: 717789 1210636
TreeView+ depends on / blocked
 
Reported: 2015-03-24 13:07 UTC by Tomas Mraz
Modified: 2015-11-20 10:22 UTC (History)
5 users (show)

Fixed In Version: libgcrypt-1.5.3-13.el7
Doc Type: Bug Fix
Doc Text:
Previously, when the dracut-fips package was installed, the libgcrypt library accessed the /dev/random device unnecessarily. This caused SELinux to produce audit events for confined applications that link to the libgcrypt library, and the random number generator did not initialize properly. With this update, libgcrypt no longer accesses /dev/random during the startup self-test, and if /dev/random is not accessible, libgcrypt uses /dev/urandom instead. As a result, SELinux no longer inappropriately creates libgcrypt-linked audit events, and the random number generator is initialized properly.
Clone Of:
: 1210636 1285779 (view as bug list)
Environment:
Last Closed: 2015-11-20 10:22:59 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Description Tomas Mraz 2015-03-24 13:07:43 UTC 
SELinux blocks many confined domains from accessing /dev/random which is correct as pulling from it drains system entropy. libgcrypt should not try to access it and it should also gracefully fallback to /dev/urandom instead of abort.
Comment 1 Tomas Mraz 2015-04-09 15:50:46 UTC 
*** Bug 1189448 has been marked as a duplicate of this bug. ***
Comment 5 Jan Kurik 2015-11-20 10:22:59 UTC 
This bug has been closed as CURRENTRELEASE due to delivery of the fix in a z-stream. As the component is not on ACL, the fix is currently included in y-stream as well.

For more information please see the zstream process documentation:
* https://engineering.redhat.com/trac/ZStream/attachment/wiki/WikiStart/Z-Stream_process_update_4.odp .
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