libpng is vulnerable to denial of service (DoS). The vulnerability exists as a memory leak flaw was found in the way applications using the libpng library decoded PNG images that use the Physical Scale (sCAL) extension. An attacker could create a specially-crafted PNG image that could cause an application using libpng to exhaust all available memory and possibly crash or exit.
libpng.git.sourceforge.net/git/gitweb.cgi?p=libpng/libpng%3Ba=commitdiff%3Bh=90cfcecc09febb8d6c8c1d37ea7bb7cf0f4b00f3#patch20
libpng.git.sourceforge.net/git/gitweb.cgi?p=libpng/libpng;a=commitdiff;h=90cfcecc09febb8d6c8c1d37ea7bb7cf0f4b00f3#patch20
lists.apple.com/archives/security-announce/2010//Nov/msg00000.html
lists.apple.com/archives/security-announce/2010//Nov/msg00003.html
lists.apple.com/archives/security-announce/2011//Mar/msg00004.html
lists.apple.com/archives/security-announce/2011/Mar/msg00000.html
lists.fedoraproject.org/pipermail/package-announce/2010-July/044283.html
lists.fedoraproject.org/pipermail/package-announce/2010-July/044397.html
lists.opensuse.org/opensuse-security-announce/2010-09/msg00006.html
lists.vmware.com/pipermail/security-announce/2010/000105.html
secunia.com/advisories/40302
secunia.com/advisories/40336
secunia.com/advisories/40472
secunia.com/advisories/40547
secunia.com/advisories/41574
secunia.com/advisories/42314
secunia.com/advisories/42317
slackware.com/security/viewer.php?l=slackware-security&y=2010&m=slackware-security.613061
support.apple.com/kb/HT4435
support.apple.com/kb/HT4456
support.apple.com/kb/HT4457
support.apple.com/kb/HT4554
support.apple.com/kb/HT4566
www.debian.org/security/2010/dsa-2072
www.libpng.org/pub/png/libpng.html
www.mandriva.com/security/advisories?name=MDVSA-2010:133
www.redhat.com/security/updates/classification/#important
www.securityfocus.com/bid/41174
www.securitytracker.com/id?1024723
www.ubuntu.com/usn/USN-960-1
www.vmware.com/security/advisories/VMSA-2010-0014.html
www.vupen.com/english/advisories/2010/1612
www.vupen.com/english/advisories/2010/1637
www.vupen.com/english/advisories/2010/1755
www.vupen.com/english/advisories/2010/1837
www.vupen.com/english/advisories/2010/1846
www.vupen.com/english/advisories/2010/1877
www.vupen.com/english/advisories/2010/2491
www.vupen.com/english/advisories/2010/3045
www.vupen.com/english/advisories/2010/3046
access.redhat.com/errata/RHSA-2010:0534
access.redhat.com/security/cve/CVE-2010-2249
bugzilla.redhat.com/show_bug.cgi?id=608644
exchange.xforce.ibmcloud.com/vulnerabilities/59816