Bug 691793 - (CVE-2011-1479) CVE-2011-1479 kernel: DoS (crash) due slab corruption in inotify_init1 (incomplete fix for CVE-2010-4250)
CVE-2011-1479 kernel: DoS (crash) due slab corruption in inotify_init1 (incom...
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
public=20110405,reported=20110329,sou...
: Security
Depends On: 692096
Blocks:
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Reported: 2011-03-29 09:49 EDT by Jan Lieskovsky
Modified: 2013-04-24 00:31 EDT (History)
18 users (show)

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Doc Type: Bug Fix
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Last Closed: 2013-04-24 00:31:46 EDT
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Description Jan Lieskovsky 2011-03-29 09:49:00 EDT
Originally, the CVE-2010-4250 identifier has been assigned to the
following vulnerability:

Memory leak in the inotify_init() system call could, in some cases,
leak a group, allowing a local, unprivileged user to eventually cause
a denial of service.

References:
[1] https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2010-4250

Later, it was found that relevant upstream commit:
a2ae4cc9a16e211c8a128ba10d22a85431f093ab, v2.6.37-rc5

did not properly address the issue / introduced a regression
(slab corruption by double free of user_struct in inotify_init1),
which could allow a local, unprivileged user to cause a denial of
service (kernel crash).
Comment 5 Eugene Teo (Security Response) 2011-04-10 23:28:36 EDT
Upstream commit:
http://git.kernel.org/linus/d0de4dc584ec6aa3b26fffea320a8457827768fc
Comment 6 Eugene Teo (Security Response) 2011-04-10 23:36:16 EDT
Statement:

This issue did not affect the versions of Linux kernel as shipped with Red Hat
Enterprise Linux 4 and 5. This has been addressed in Red Hat Enterprise Linux 6 and Red Hat Enterprise MRG via https://rhn.redhat.com/errata/RHSA-2011-0498.html and https://rhn.redhat.com/errata/RHSA-2011-1253.html.
Comment 8 Chuck Ebbert 2011-04-13 21:54:42 EDT
The fix will also be in 2.6.38.3 .
Comment 9 errata-xmlrpc 2011-09-12 15:45:08 EDT
This issue has been addressed in following products:

  MRG for RHEL-6 v.2

Via RHSA-2011:1253 https://rhn.redhat.com/errata/RHSA-2011-1253.html

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