Vulnerability identifier: #VU32449

Vulnerability risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2014-9495

CWE-ID: CWE-122

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
libpng
Universal components / Libraries / Libraries used by multiple products

Vendor: libpng

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing data within the png_combine_row function in libpng before 1.5.21 and 1.6.x before 1.6.16, when running on 64-bit systems. A remote attacker can pass a specially crafted file to the affected application, trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Update to version 1.5.21.

Vulnerable software versions

libpng: 1.5.0 - 1.5.20

---

External links
http://lists.apple.com/archives/security-announce/2016/Mar/msg00004.html
http://secunia.com/advisories/62725
http://sourceforge.net/p/png-mng/mailman/message/33172831/
http://sourceforge.net/p/png-mng/mailman/message/33173461/
http://www.openwall.com/lists/oss-security/2015/01/04/3
http://www.openwall.com/lists/oss-security/2015/01/10/1
http://www.openwall.com/lists/oss-security/2015/01/10/3
http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html
http://www.securityfocus.com/bid/71820
http://www.securitytracker.com/id/1031444
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.