Heap-based buffer overflow in libpng

1) Heap-based buffer overflow

EUVDB-ID: #VU32449

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 - Heap-based Buffer Overflow

Exploit availability: No

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.