GLSA Advocate
Joined: 12 May 2004 Posts: 2663
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Posted: Thu May 31, 2007 7:26 pm Post subject: [ GLSA 200705-24 ] libpng: Denial of Service |
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Gentoo Linux Security Advisory
Title: libpng: Denial of Service (GLSA 200705-24)
Severity: normal
Exploitable: remote
Date: May 31, 2007
Bug(s): #178004
ID: 200705-24
Synopsis
A vulnerability in libpng may allow a remote attacker to crash applications
that handle untrusted images.
Background
libpng is a free ANSI C library used to process and manipulate PNG
images.
Affected Packages
Package: media-libs/libpng
Vulnerable: < 1.2.17
Unaffected: >= 1.2.17
Architectures: All supported architectures
Description
Mats Palmgren fixed an error in file pngrutil.c in which the trans[]
array might be not allocated because of images with a bad tRNS chunk
CRC value.
Impact
A remote attacker could craft an image that when processed or viewed by
an application using libpng causes the application to terminate
abnormally.
Workaround
There is no known workaround at this time.
Resolution
Please note that due to separate bugs in libpng 1.2.17, Gentoo does not
provide libpng-1.2.17 but libpng-1.2.18. All libpng users should
upgrade to the latest version:
Code: | # emerge --sync
# emerge --ask --oneshot --verbose ">=media-libs/libpng-1.2.18" |
References
CVE-2007-2445
Last edited by GLSA on Thu Apr 19, 2012 4:23 am; edited 4 times in total |
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