Bug 740864 - (CVE-2011-3328) CVE-2011-3328 libpng: malformed cHRM divide-by-zero vulnerability in 1.5.4
CVE-2011-3328 libpng: malformed cHRM divide-by-zero vulnerability in 1.5.4
Status: CLOSED UPSTREAM
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
impact=moderate,public=20110922,repor...
: Security
Depends On:
Blocks:
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Reported: 2011-09-23 11:15 EDT by Vincent Danen
Modified: 2011-09-23 11:18 EDT (History)
1 user (show)

See Also:
Fixed In Version: libpng 1.5.5
Doc Type: Bug Fix
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Last Closed: 2011-09-23 11:17:17 EDT
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Description Vincent Danen 2011-09-23 11:15:49 EDT
It was reported [1] that libpng 1.5.4 suffered from a flaw when encountering a malformed cHRM chunk in a PNG graphics file.  libpng would perform a divide-by-zero, which would cause libpng, or any application linked to libpng, to crash.

This flaw only affected libpng 1.5.4 where it was introduced, and is corrected in version 1.5.5. [2]

[1] http://www.kb.cert.org/vuls/id/477046
[2] http://sourceforge.net/tracker/index.php?func=detail&aid=3406145&group_id=5624&atid=105624


Statement:

Not vulnerable. This issue did not affect the versions of libpng as shipped with Red Hat Enterprise Linux 4, 5, or 6.
Comment 1 Vincent Danen 2011-09-23 11:17:17 EDT
This does not affect anything we ship; we do not provide libpng 1.5.x in any product.

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