#VU4433 Use-after-free error in Microsoft Internet Explorer - CVE-2013-3893
Published: January 12, 2017 / Updated: May 20, 2021
Vulnerability identifier: #VU4433
Vulnerability risk: Critical
CVSSv4.0: CVSS:4.0/AV:N/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-2013-3893
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vulnerable software:
Microsoft Internet Explorer
Microsoft Internet Explorer
Software vendor:
Microsoft
Microsoft
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The weakness exists due to use-after-free error in SetMouseCapture implementation. A remote attacker can create specially crafted JavaScript, place it on a Web page, trick the victim into visiting it using Internet Explorer, 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.
The weakness exists due to use-after-free error in SetMouseCapture implementation. A remote attacker can create specially crafted JavaScript, place it on a Web page, trick the victim into visiting it using Internet Explorer, 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.
Remediation
Install update from vendor's website.