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Bug 216958 - CVE-2006-5823 zlib_inflate memory corruption
CVE-2006-5823 zlib_inflate memory corruption
Status: CLOSED ERRATA
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: kernel (Show other bugs)
4.0
All Linux
medium Severity low
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Assigned To: Eric Sandeen
Brian Brock
impact=low,source=internet,reported=2...
: Security
Depends On:
Blocks:
  Show dependency treegraph
 
Reported: 2006-11-22 16:40 EST by Marcel Holtmann
Modified: 2007-11-30 17:07 EST (History)
2 users (show)

See Also:
Fixed In Version: RHSA-2007-0014
Doc Type: Bug Fix
Doc Text:
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Last Closed: 2007-01-30 09:42:53 EST
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RHEL 7.3 requirements from Atomic Host:


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Description Marcel Holtmann 2006-11-22 16:40:47 EST
From MOKB-07-11-2006:

http://projects.info-pull.com/mokb/MOKB-07-11-2006.html

Linux 2.6.x zlib_inflate function can be abused by filesystems that depend on
zlib compression, such as cramfs. A failure to handle crafted data, result of a
read operation in a corrupted filesystem stream, may lead to memory corruption.
This particular vulnerability requires a filesystem (proof of concept for cramfs
provided) to fail validation (ex. no integrity checking) of the binary stream in
order to reach execution of zlib_inflate().
Comment 2 Jason Baron 2006-12-13 14:05:07 EST
committed in stream U5 build 42.31. A test kernel with this patch is available
from http://people.redhat.com/~jbaron/rhel4/
Comment 3 Jason Baron 2006-12-18 16:49:46 EST
committed in stream E5 build 42.0.4
Comment 5 Mike Gahagan 2007-01-17 17:49:35 EST
verified with 42.0.6 using fsfuzzer
Comment 7 Red Hat Bugzilla 2007-01-30 09:42:54 EST
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHSA-2007-0014.html

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