Input validation error in libpng

1) Input validation error

EUVDB-ID: #VU32352

Risk: Medium

CVSSv3.1: 6.4 [AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2015-8472

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows remote attackers to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can cause a denial of service (application crash) or possibly have unspecified other impact via a small bit-depth value in an IHDR (aka image header) chunk in a PNG image.

Mitigation

The vendor has issued the following versions to address this vulnerability: 1.0.65, 1.2.55, 1.4.18, 1.5.25, 1.6.20.

Vulnerable software versions

libpng: 1.0.0 - 1.6.19

External links

http://lists.apple.com/archives/security-announce/2016/Mar/msg00004.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/174905.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/174936.html
http://lists.fedoraproject.org/pipermail/package-announce/2016-January/175073.html
http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00038.html
http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00041.html
http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00042.html
http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00043.html
http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00044.html
http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00045.html
http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00047.html
http://lists.opensuse.org/opensuse-security-announce/2016-01/msg00048.html
http://rhn.redhat.com/errata/RHSA-2015-2594.html
http://rhn.redhat.com/errata/RHSA-2015-2595.html
http://rhn.redhat.com/errata/RHSA-2015-2596.html
http://rhn.redhat.com/errata/RHSA-2016-0055.html
http://rhn.redhat.com/errata/RHSA-2016-0056.html
http://rhn.redhat.com/errata/RHSA-2016-0057.html
http://sourceforge.net/projects/libpng/files/libpng10/1.0.65/
http://sourceforge.net/projects/libpng/files/libpng12/1.2.55/
http://sourceforge.net/projects/libpng/files/libpng14/1.4.18/
http://sourceforge.net/projects/libpng/files/libpng15/1.5.25/
http://sourceforge.net/projects/libpng/files/libpng16/1.6.20/
http://www.debian.org/security/2016/dsa-3443
http://www.openwall.com/lists/oss-security/2015/12/03/6
http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
http://www.securityfocus.com/bid/78624
http://access.redhat.com/errata/RHSA-2016:1430
http://kc.mcafee.com/corporate/index?page=content&id=SB10148
http://support.apple.com/HT206167

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.