Buffer overflow in Microsoft Office for macOS and Microsoft Office - CVE-2013-1331

Vulnerability identifier: #VU4342

CSH Severity: Critical

CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red

CVE-ID: CVE-2013-1331

CWE-ID: CWE-119

Exploitation vector: Remote access

Exploit availability: The vulnerability is being exploited in the wild

Vendor: Microsoft

Affected software:
Microsoft Office for macOS
Microsoft Office

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

The weakness exists due to buffer overflow when processing malicious PNG files. A remote attacker can create specially crafted file, trick the victim into opening it using an affected version of Microsoft Office, trigger memory corruption and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability results in arbitrary code execution on the vulnerable system.

Note: the vulnerability was being actively exploited.

Install update from vendor's website:

Microsoft Office 2003 Service Pack 3:
https://www.microsoft.com/downloads/details.aspx?familyid=1acd93fa-e6d6-44b1-86de-4fbb464d0e6c
Microsoft Office for Mac 2011:
https://www.microsoft.com/downloads/details.aspx?familyid=8bb70e5c-a3b1-4618-8295-2721b78f1d5f

• https://technet.microsoft.com/en-us/library/security/ms13-051.aspx