Arch Linux Security Warning ALSW 2007-#32
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Name: libpng
Date: 2007-05-20
Severity: High
Warning #: 2007-#32

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Product Background
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libpng is the official PNG reference library. It supports almost all PNG
features, is extensible, and has been extensively tested for over 12 year=
s.

Problem Background
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Versions up through 1.2.16 (and 1.0.24) have an NULL-pointer-dereference
vulnerability involving palette images with a malformed tRNS chunk
(i.e., one with a bad CRC value).

Impact
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This bug can, at a minimum, cause crashes in browsers simply by visiting
a page displaying such an image.

Problem Packages
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Package: libpng
Repo: current
Group: lib
Unsafe: < 1.2.18
Safe: >=3D 1.2.18

Package Fix
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Upgrade to 1.2.18

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Unofficial ArchLinux Security Bug Tracker:
http://jjdanimoth.netsons.org/alsw.html

Reference(s)
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http://www.libpng.org/pub/png/libpng.html
http://cve.mitre.org/cgi-bin/cvename.cgi?name=3DCVE-2007-2445
http://www.kb.cert.org/vuls/id/684664

Attachment: signature.asc
Description: OpenPGP digital signature

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