Bug 843146

Summary: CVE-2012-3400 kernel: udf: buffer overflow when parsing sparing table [fedora-all]
Product: [Fedora] Fedora Reporter: Petr Matousek <pmatouse>
Component: kernelAssignee: Kernel Maintainer List <kernel-maint>
Status: CLOSED CURRENTRELEASE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: low Docs Contact:
Priority: low    
Version: 16CC: davej, gansalmon, itamar, jforbes, jonathan, jwboyer, kernel-maint, madhu.chinakonda
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Release Note
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2012-07-25 17:39:34 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 843139    

Description Petr Matousek 2012-07-25 17:19:45 UTC 
This is an automatically created tracking bug!  It was created to ensure
that one or more security vulnerabilities are fixed in affected Fedora
versions.

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:
http://fedoraproject.org/wiki/Security/TrackingBugs

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:
https://admin.fedoraproject.org/updates/new/?type_=security&bugs=843139

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 17:39:34 UTC 
This is fixed by commits:

commit 4836ee563d65bb492f907cbe267a5761b9693e4d
Author: Jan Kara <jack>
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>
    Signed-off-by: Greg Kroah-Hartman <gregkh>

commit b3b9f9cd546c4b3d72b0a95ba4ca29c840fce28e
Author: Jan Kara <jack>
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>
    Signed-off-by: Greg Kroah-Hartman <gregkh>

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