Bug 470480 - (CVE-2008-4225) CVE-2008-4225 libxml2: integer overflow leading to infinite loop in xmlBufferResize
CVE-2008-4225 libxml2: integer overflow leading to infinite loop in xmlBuffer...
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
reported=20081103,public=20081117,sou...
: Security
Depends On: 470469 470470 470472 470473 470474 470475
Blocks:
  Show dependency treegraph
 
Reported: 2008-11-07 06:50 EST by Jan Lieskovsky
Modified: 2016-03-04 06:01 EST (History)
3 users (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Last Closed: 2008-11-26 03:07:24 EST
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RHEL 7.3 requirements from Atomic Host:
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Attachments (Terms of Use)
Proposed patch from Drew Yao (706 bytes, patch)
2008-11-07 06:50 EST, Jan Lieskovsky
no flags Details | Diff

  None (edit)
Description Jan Lieskovsky 2008-11-07 06:50:24 EST
Created attachment 322846 [details]
Proposed patch from Drew Yao

Description of problem:

Drew Yao of Apple Product Security has reported an integer overflow
present in xmlBufferResize function in the libxml2 library potentially
leading to an infinite loop. User could provide a very large XML file
for parsing to the XML parsing library, which could allow him to
cause a denial of service.

Proposed patch: See attachment.

Acknowledgements:

Red Hat would like to thank Drew Yao of the Apple Product Security team for
reporting this issue.
Comment 3 Jan Lieskovsky 2008-11-07 07:02:30 EST
This issue affects all versions of the libxml2 package, as shipped with
Red Hat Enterprise Linux 2.1, 3, 4 or 5.

This issue affects all versions of the libxml2 package, as shipped with
Fedora release of 8, 9 or 10.
Comment 6 Daniel Veillard 2008-11-12 09:49:36 EST
The patch looks fine, though it gets really hard to reproduce and test,

Daniel
Comment 8 Josh Bressers 2008-11-17 10:50:34 EST
Lifting embargo
Comment 9 Fedora Update System 2008-11-17 11:55:55 EST
libxml2-2.7.2-2.fc9 has been submitted as an update for Fedora 9.
http://admin.fedoraproject.org/updates/libxml2-2.7.2-2.fc9
Comment 10 Fedora Update System 2008-11-17 11:57:00 EST
libxml2-2.7.2-2.fc10 has been submitted as an update for Fedora 10.
http://admin.fedoraproject.org/updates/libxml2-2.7.2-2.fc10
Comment 11 Fedora Update System 2008-11-19 09:50:56 EST
libxml2-2.7.2-2.fc8 has been pushed to the Fedora 8 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 12 Fedora Update System 2008-11-19 09:55:33 EST
libxml2-2.7.2-2.fc9 has been pushed to the Fedora 9 stable repository.  If problems still persist, please make note of it in this bug report.
Comment 13 Fedora Update System 2008-11-22 11:50:39 EST
libxml2-2.7.2-2.fc10 has been pushed to the Fedora 10 stable repository.  If problems still persist, please make note of it in this bug report.

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