Bug 1067341 - Kernel: nfs: information leakage flaw
Summary: Kernel: nfs: information leakage flaw
Keywords:
Status: CLOSED DUPLICATE of bug 1066939
Alias: None
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2014-02-20 09:27 UTC by Prasad Pandit
Modified: 2021-02-17 06:50 UTC (History)
33 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2014-02-20 20:38:23 UTC
Embargoed:

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Description Prasad Pandit 2014-02-20 09:27:52 UTC 
Linux kernel build with the NFS file system(CONFIG_NFS_FS) along with the
support for NFSv4 protocol(CONFIG_NFS_V4) is vulnerable to an information
leakage flaw. It could occur while writing to a file wherein NFS server has
offered write delegation to the client. Such delegation allows NFS client to
perform the said operation locally without instant interaction with the server.

A user/program could use this flaw to leak kernel memory bytes.

Upstream fix:
-------------
  -> https://git.kernel.org/linus/263b4509ec4d47e0da3e753f85a39ea12d1eff24
Comment 1 Prasad Pandit 2014-02-20 09:37:03 UTC 
Statement:

This issue does not affect the versions of the kernel package as shipped with Red Hat Enterprise Linux 5 and Red Hat Enterprise MRG 2.

This issue affects the version of Linux kernel as shipped with Red Hat Enterprise Linux 6. Future kernel updates for Red Hat Enterprise Linux 6  may address this issue.
Comment 2 Prasad Pandit 2014-02-20 20:38:23 UTC 

*** This bug has been marked as a duplicate of bug 1066939 ***
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