Joined: 12 May 2004
|Posted: Thu May 31, 2007 7:26 pm Post subject: [ GLSA 200705-24 ] libpng: Denial of Service
|Gentoo Linux Security Advisory
Title: libpng: Denial of Service (GLSA 200705-24)
Date: May 31, 2007
A vulnerability in libpng may allow a remote attacker to crash applications
that handle untrusted images.
libpng is a free ANSI C library used to process and manipulate PNG
Vulnerable: < 1.2.17
Unaffected: >= 1.2.17
Architectures: All supported architectures
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
A remote attacker could craft an image that when processed or viewed by
an application using libpng causes the application to terminate
There is no known workaround at this time.
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:
|# emerge --sync
# emerge --ask --oneshot --verbose ">=media-libs/libpng-1.2.18"
Last edited by GLSA on Thu Apr 19, 2012 4:23 am; edited 4 times in total