SB2018091202 - Multiple vulnerabilities in Microsoft Internet Explorer
Published: September 12, 2018 Updated: September 13, 2018
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 6 secuirty vulnerabilities.
1) Buffer overflow (CVE-ID: CVE-2018-8461)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to boundary error when processing HTML code. A remote unauthenticated attacker can create a specially crafted web page, 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) Buffer overflow (CVE-ID: CVE-2018-8447)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to boundary error when processing HTML code. A remote unauthenticated attacker can create a specially crafted web page, 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.
3) Cross-site scripting (CVE-ID: CVE-2018-8470)
The disclosed vulnerability allows a remote attacker to perform universal cross-site scripting (UXSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of any page (opened or chached).
4) Buffer over-read (CVE-ID: CVE-2018-8315)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary error while handling object types when parsing HTML content. A remote attacker can create a specially crafted web page, trick the victim into opening it, trigger out-of-bounds read and gain access to contents of memory.
5) Buffer over-read (CVE-ID: CVE-2018-8452)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary error when parsing HTML content. A remote attacker can create a specially crafted web page, trick the victim into opening it, trigger out-of-bounds read and gain access to contents of memory.
6) Memory corruption (CVE-ID: CVE-2018-8457)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing HTML code within the scripting engine. 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.
Remediation
Install update from vendor's website.
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8461
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8447
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8470
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8315
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8452
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8457