Multiple vulnerabilities in Microsoft Internet Explorer

Published: 2016-05-10 00:00:00 | Updated: 2017-02-15
Severity Critical
Patch available YES
Number of vulnerabilities 5
CVE ID CVE-2016-0194
CVE-2016-0192
CVE-2016-0189
CVE-2016-0188
CVE-2016-0187
CVSSv3 5.7 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]
8.3 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
8.9 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:F/RL:O/RC:C]
8.3 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
8.3 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]
CWE ID CWE-388
CWE-119
CWE-284
Exploitation vector Network
Public exploit Vulnerability #3 is being exploited in the wild.
Vulnerable software Microsoft Internet Explorer
Microsoft Edge
Microsoft JScript
VBScript
Vulnerable software versions Microsoft Internet Explorer 11
Microsoft Internet Explorer 10
Microsoft Internet Explorer 9
Microsoft Edge -
Microsoft JScript 5.8
VBScript 5.8
Vendor URL Microsoft

Security Advisory

1) Information disclosure

Description

The vulnerability allows a remote attacker to obtain potentially sensitive information on the target system.

The weakness exists due to improper handling of files. A remote attacker can create a specially crafted content, trick the victim into opening it, view the contents of arbitrary files on the system and use this information to launch further attacks.

Successful exploitation of the vulnerability results in information disclosure on the vulnerable system.

Remediation

Install update form vendor's website.

External links

https://technet.microsoft.com/en-us/library/security/ms16-051.aspx

2) Memory corruption

Description

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

The weakness exists due to boundary error when handling malicious files. A remote attacker can create a specially crafted content, trick the victim into opening it, trigger memory corruption and execute arbitrary code.

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

Remediation

Install update from vendor's website.

External links

https://technet.microsoft.com/en-us/library/security/ms16-051.aspx
https://technet.microsoft.com/en-us/library/security/ms16-052.aspx

3) Memory corruption

Description

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

The weakness exists due to boundary error in the Scripting Engine when handling malicious files. A remote attacker can create a specially crafted content, trick the victim into opening it, trigger memory corruption and execute arbitrary code.

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.

External links

https://technet.microsoft.com/en-us/library/security/ms16-051.aspx
https://technet.microsoft.com/en-us/library/security/ms16-053.aspx

4) Security bypass

Description

The vulnerabiity allows a remote attacker to bypass security restrictions on the target system.

The weakness exists due to improper validation of code integrity by the User Mode Code Integrity (UMCI) component of Device Guard. A remote attacker can create a specially crafted Web site, trick the victim into visiting it, bypass code-signing protection mechanism and execute a malicious code.

Successful exploitation of this vulnerability may result in arbitrary code execution on the vulnerable system.

Remediation

Install update from vendor's website.

External links

https://technet.microsoft.com/en-us/library/security/ms16-051.aspx

5) Memory corruption

Description

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

The weakness exists due to boundary error in the Scripting Engine when handling malicious files. A remote attacker can create a specially crafted content, trick the victim into opening it, trigger memory corruption and execute arbitrary code.

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

Remediation

Install update from vendor's website.

External links

https://technet.microsoft.com/en-us/library/security/ms16-051.aspx
https://technet.microsoft.com/en-us/library/security/ms16-053.aspx

Back to List