Bug 216263 - CVE-2006-5793: libpng10 < 1.0.21 DoS vulnerability
CVE-2006-5793: libpng10 < 1.0.21 DoS vulnerability
Product: Fedora
Classification: Fedora
Component: libpng10 (Show other bugs)
All Linux
medium Severity medium
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Assigned To: Paul Howarth
Fedora Extras Quality Assurance
: Security
Depends On:
  Show dependency treegraph
Reported: 2006-11-18 05:13 EST by Ville Skyttä
Modified: 2007-11-30 17:11 EST (History)
3 users (show)

See Also:
Fixed In Version: 1.0.21-1
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2006-11-26 01:53:26 EST
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RHEL 7.3 requirements from Atomic Host:
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Description Ville Skyttä 2006-11-18 05:13:41 EST

"The sPLT chunk handling code (png_set_sPLT function in pngset.c) in libpng
1.0.6 through 1.2.12 uses a sizeof operator on the wrong data type, which allows
context-dependent attackers to cause a denial of service (crash) via malformed
sPLT chunks that trigger an out-of-bounds read."

Appears to be fixed in 1.0.21.
Comment 1 Paul Howarth 2006-11-19 09:04:44 EST
I have 1.0.21 packages prepared, but can't import and build yet due to the cvs
outage. If anyone would like a preview, I have packages here:


(no ppc packages as I don't have a ppc builder)

Note that libpng10 is a Core package for all releases prior to FC6 (and
presumably RHEL too) so separate bugs will need raising for those releases.

http://www.fedoraproject.org/wiki/Extras/Schedule/SecurityAnnoucements has
disappeared from the wiki, so is there a document somewhere stating how to
prepare and send out a securiry announcement?
Comment 2 Paul Howarth 2006-11-21 05:17:46 EST
1.0.21-1 has built successfully for Rawhide and FC6, and should be released
later today. A fix is still needed for FC5 and earlier releases of course.
Comment 3 Ville Skyttä 2006-11-21 11:56:19 EST
FC report is in bug 216706, and today's FE push is in progress.
Comment 4 Ville Skyttä 2006-11-26 01:53:26 EST
Looks like this has been fixed for a while now.

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