#VU6296 Use-after-free in Microsoft Office - CVE-2017-0261
Published: April 13, 2017 / Updated: May 12, 2017
Vulnerability identifier: #VU6296
Vulnerability risk: Critical
CVSSv4.0: 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-2017-0261
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vulnerable software:
Microsoft Office
Microsoft Office
Software vendor:
Microsoft
Microsoft
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a use-after-free error when processing EPS images within Microsoft Office files. A remote attacker can create a specially crafted Office file with malicious EPS image, trick the victim into opening it and execute arbitrary code on the target system with privileges of the current user.
Successful exploitation of this vulnerability may allow an attacker to compromise vulnerable system.
Note: this vulnerability is being actively exploited in the wild.
Remediation
Install update from vendor's website.
External links
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/2017-2605
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-0261
- https://www.fireeye.com/blog/threat-research/2017/05/eps-processing-zero-days.html
- https://blogs.technet.microsoft.com/msrc/2017/05/09/coming-together-to-address-encapsulated-postscri...