SB2018111309 - Multiple vulnerabilities in Microsoft Internet Explorer

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Memory corruption (CVE-ID: CVE-2018-8570)

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

The vulnerability exists due to a boundary error when Internet Explorer accesses objects in memory. A remote attacker can create a specially crafted website, trick the victim into visiting it, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

2) Memory corruption (CVE-ID: CVE-2018-8552)

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

The vulnerability exists due to a boundary error when VBScript improperly discloses the contents of its memory. A remote attacker with knowledge of the memory address of where the object was created can trigger memory corruption and access arbitrary data that can be used to conduct further attacks.

Remediation

Install update from vendor's website.

References

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8570
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8552