Bug 567813 (CVE-2010-1088) - CVE-2010-1088 kernel: fix LOOKUP_FOLLOW on automount "symlinks"
Summary: CVE-2010-1088 kernel: fix LOOKUP_FOLLOW on automount "symlinks"
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2010-1088
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: 567814 567815 567816 567817
Blocks:
TreeView+ depends on / blocked
 
Reported: 2010-02-24 01:08 UTC by Eugene Teo (Security Response)
Modified: 2021-11-12 20:05 UTC (History)
15 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2012-03-28 08:45:39 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2010:0504 0 normal SHIPPED_LIVE Important: kernel security and bug fix update 2010-07-01 18:26:58 UTC
Red Hat Product Errata RHSA-2010:0631 0 normal SHIPPED_LIVE Important: kernel-rt security and bug fix update 2010-08-18 07:58:39 UTC

Description Eugene Teo (Security Response) 2010-02-24 01:08:56 UTC 
Description of problem:
Make sure that automount "symlinks" are followed regardless of LOOKUP_FOLLOW; it should have no effect on them.

Upstream commit:
http://git.kernel.org/linus/ac278a9c505092dd82077a2446af8f9fc0d9c095

For this vulnerability to work, you need the support for O_NOFOLLOW (predates 2.6.12), openat (2.6.16 onwards) and use by NFS of 'trapdoor mounts' (2.6.18 onwards).
Comment 7 errata-xmlrpc 2010-07-01 18:28:03 UTC 
This issue has been addressed in following products:

  Red Hat Enterprise Linux 5

Via RHSA-2010:0504 https://rhn.redhat.com/errata/RHSA-2010-0504.html
Comment 9 errata-xmlrpc 2010-08-17 15:53:15 UTC 
This issue has been addressed in following products:

  MRG for RHEL-5

Via RHSA-2010:0631 https://rhn.redhat.com/errata/RHSA-2010-0631.html
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