Bug 843146 - CVE-2012-3400 kernel: udf: buffer overflow when parsing sparing table [fedora-all]
CVE-2012-3400 kernel: udf: buffer overflow when parsing sparing table [fedora...
Product: Fedora
Classification: Fedora
Component: kernel (Show other bugs)
All Linux
low Severity low
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Assigned To: Kernel Maintainer List
Fedora Extras Quality Assurance
: Security, SecurityTracking
Depends On:
Blocks: CVE-2012-3400
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Reported: 2012-07-25 13:19 EDT by Petr Matousek
Modified: 2012-07-25 13:39 EDT (History)
8 users (show)

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Fixed In Version:
Doc Type: Release Note
Doc Text:
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Clone Of:
Last Closed: 2012-07-25 13:39:34 EDT
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Regression: ---
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

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Description Petr Matousek 2012-07-25 13:19:45 EDT
This is an automatically created tracking bug!  It was created to ensure
that one or more security vulnerabilities are fixed in affected Fedora

For comments that are specific to the vulnerability please use bugs filed
against "Security Response" product referenced in the "Blocks" field.

For more information see:

When creating a Bodhi update request, please include this bug ID and the
bug IDs of this bug's parent bugs filed against the "Security Response"
product (the top-level CVE bugs).  Please mention the CVE IDs being fixed
in the RPM changelog when available.

Bodhi update submission link:

Please note: this issue affects multiple supported versions of Fedora.
Only one tracking bug has been filed; please ensure that it is only closed
when all affected versions are fixed.

Reproducers, if any, will remain confidential and never be made public, unless done so by the security team.

[bug automatically created by: add-tracking-bugs]
Comment 1 Josh Boyer 2012-07-25 13:39:34 EDT
This is fixed by commits:

commit 4836ee563d65bb492f907cbe267a5761b9693e4d
Author: Jan Kara <jack@suse.cz>
Date:   Wed Jun 27 21:23:07 2012 +0200

    udf: Fortify loading of sparing table
    commit 1df2ae31c724e57be9d7ac00d78db8a5dabdd050 upstream.
    Add sanity checks when loading sparing table from disk to avoid accessing
    unallocated memory or writing to it.
    Signed-off-by: Jan Kara <jack@suse.cz>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

commit b3b9f9cd546c4b3d72b0a95ba4ca29c840fce28e
Author: Jan Kara <jack@suse.cz>
Date:   Wed Jun 27 20:20:22 2012 +0200

    udf: Avoid run away loop when partition table length is corrupted
    commit adee11b2085bee90bd8f4f52123ffb07882d6256 upstream.
    Check provided length of partition table so that (possibly maliciously)
    corrupted partition table cannot cause accessing data beyond current buffer.
    Signed-off-by: Jan Kara <jack@suse.cz>
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

which are in 3.4.5.  All supported Fedora releases are on 3.4.6 already and are fixed.

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