Bug 648670 - (CVE-2010-4081) CVE-2010-4081 kernel: drivers/sound/pci/rme9652/hdspm.c: reading uninitialized stack memory
CVE-2010-4081 kernel: drivers/sound/pci/rme9652/hdspm.c: reading uninitialize...
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
Unspecified Unspecified
low Severity low
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Assigned To: Red Hat Product Security
public=20100925,reported=20101006,sou...
: Security
Depends On: 648712 648713 648714 648715 648716
Blocks:
  Show dependency treegraph
 
Reported: 2010-11-01 17:27 EDT by Petr Matousek
Modified: 2015-07-31 02:33 EDT (History)
12 users (show)

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Doc Type: Bug Fix
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Last Closed: 2013-04-05 11:35:01 EDT
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Description Petr Matousek 2010-11-01 17:27:08 EDT
Description of problem:
The SNDRV_HDSP_IOCTL_GET_CONFIG_INFO ioctl in hdspm.c allows unprivileged users to read uninitialized kernel stack memory, because several fields of the hdspm_config_info structs declared on the stack are not altered or zeroed before being copied back to the user. 

Reference:
http://www.openwall.com/lists/oss-security/2010/10/06/6
http://lkml.org/lkml/2010/9/25/41

Acknowledgements:

Red Hat would like to thank Dan Rosenberg for reporting this issue.
Comment 2 Petr Matousek 2010-11-02 07:18:03 EDT
Statement:

This issue did not affect the versions of Linux kernel as shipped with Red Hat
Enterprise Linux 3 and 4 as they did not include support for RME Hammerfall DSP
MADI Audio interface.
Comment 3 Eugene Teo (Security Response) 2010-11-04 03:35:59 EDT
Upstream commit:
http://git.kernel.org/linus/e68d3b316ab7b02a074edc4f770e6a746390cb7d
Comment 4 errata-xmlrpc 2011-01-11 14:46:38 EST
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2011:0007 https://rhn.redhat.com/errata/RHSA-2011-0007.html
Comment 5 errata-xmlrpc 2011-01-13 16:59:12 EST
This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2011:0017 https://rhn.redhat.com/errata/RHSA-2011-0017.html

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