Bug 648658 (CVE-2010-4073) - CVE-2010-4073 kernel: ipc/compat*.c: reading uninitialized stack memory
Summary: CVE-2010-4073 kernel: ipc/compat*.c: reading uninitialized stack memory
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2010-4073
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: Unspecified
OS: Unspecified
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 648691 648692 648693 648694 648695 648810 648811
Blocks:
TreeView+ depends on / blocked
 
Reported: 2010-11-01 21:15 UTC by Petr Matousek
Modified: 2023-05-11 15:42 UTC (History)
14 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2021-10-19 09:16:03 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2010:0958 0 normal SHIPPED_LIVE Important: kernel-rt security and bug fix update 2010-12-08 19:08:55 UTC
Red Hat Product Errata RHSA-2011:0007 0 normal SHIPPED_LIVE Important: kernel security and bug fix update 2011-01-11 19:44:55 UTC
Red Hat Product Errata RHSA-2011:0017 0 normal SHIPPED_LIVE Important: Red Hat Enterprise Linux 5.6 kernel security and bug fix update 2011-01-13 10:37:42 UTC
Red Hat Product Errata RHSA-2011:0162 0 normal SHIPPED_LIVE Important: kernel security and bug fix update 2011-01-18 17:45:00 UTC

Description Petr Matousek 2010-11-01 21:15:19 UTC 
Description of problem:
The compat ipc functions allow unprivileged users to read uninitialized stack memory, because some of the structures used and declared on the stack are not altered or zeroed before being copied back to the user.

Reference:
http://www.openwall.com/lists/oss-security/2010/10/07/1
http://lkml.org/lkml/2010/10/6/492

Acknowledgements:

Red Hat would like to thank Dan Rosenberg for reporting this issue.
Comment 3 Petr Matousek 2010-11-02 10:38:21 UTC 
Statement:

This issue did not affect the version of Linux kernel as shipped with Red Hat
Enterprise Linux 3 as it did not include IPC compat functionality.
Comment 4 Eugene Teo (Security Response) 2010-11-22 05:38:06 UTC 
Upstream commit:
http://git.kernel.org/linus/03145beb455cf5c20a761e8451e30b8a74ba58d9
Comment 5 Kyle McMartin 2010-11-23 15:06:48 UTC 
Thanks, grabbing this fix for Fedora as it doesn't seem to have made it into the stable series.
Comment 8 errata-xmlrpc 2010-12-08 19:09:51 UTC 
This issue has been addressed in following products:

  MRG for RHEL-5

Via RHSA-2010:0958 https://rhn.redhat.com/errata/RHSA-2010-0958.html
Comment 9 errata-xmlrpc 2011-01-11 19:46:20 UTC 
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 10 errata-xmlrpc 2011-01-13 21:58:58 UTC 
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
Comment 11 errata-xmlrpc 2011-01-14 09:02:54 UTC 
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
Comment 12 errata-xmlrpc 2011-01-18 17:45:38 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 4

Via RHSA-2011:0162 https://rhn.redhat.com/errata/RHSA-2011-0162.html
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