SB2021090211 - Multiple vulnerabilities in Microsoft Edge
Published: September 2, 2021
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 21 secuirty vulnerabilities.
1) Use-after-free (CVE-ID: CVE-2021-30624)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to use-after-free error in Autofill in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it and crash the browser.
2) Use-after-free (CVE-ID: CVE-2021-30613)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error within Base internals in Google Chrome. A remote attacker can trick the victim into visiting a specially crafted web page, trigger a use-after-free error and gain access to sensitive information.
3) Use-after-free (CVE-ID: CVE-2021-30606)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error within the Blink component in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger use-after-free error and execute arbitrary code on the target system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
4) Use-after-free (CVE-ID: CVE-2021-30607)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error within the Permissions component in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger use-after-free error and execute arbitrary code on the target system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
5) Use-after-free (CVE-ID: CVE-2021-30608)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error within the Web Share component in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger use-after-free error and execute arbitrary code on the target system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
6) Use-after-free (CVE-ID: CVE-2021-30609)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error within the Sign-In component in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger use-after-free error and execute arbitrary code on the target system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
7) Use-after-free (CVE-ID: CVE-2021-30610)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error within the Extensions API component in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger use-after-free error and execute arbitrary code on the target system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
8) Use-after-free (CVE-ID: CVE-2021-30611)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error within WebRTC in Google Chrome. A remote attacker can trick the victim into visiting a specially crafted web page, trigger a use-after-free error and gain access to sensitive information.
9) Use-after-free (CVE-ID: CVE-2021-30612)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error within WebRTC in Google Chrome. A remote attacker can trick the victim into visiting a specially crafted web page, trigger a use-after-free error and gain access to sensitive information.
10) Heap-based buffer overflow (CVE-ID: CVE-2021-30614)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing untrusted HTML content in TabStrip. A remote attacker can create a specially crafted web page, trick the victim into opening it, trigger a heap-based buffer overflow and execute arbitrary code on the target system.
11) Use-after-free (CVE-ID: CVE-2021-30623)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to use-after-free error in Bookmarks in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it and crash the browser.
12) Information disclosure (CVE-ID: CVE-2021-30615)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to cross-domain data leak in Navigation in Google Chrome. A remote attacker can trick the victim to open a specially crafted website and gain access to sensitive information.
13) Use-after-free (CVE-ID: CVE-2021-30616)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error within Media in Google Chrome. A remote attacker can trick the victim into visiting a specially crafted web page, trigger a use-after-free error and gain access to sensitive information.
14) Improper access control (CVE-ID: CVE-2021-30617)
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to improper access restrictions in Blink. A remote attacker can create a specially crafted web page, trick the victim into visiting it, bypass implemented security restrictions and gain unauthorized access to sensitive information.
15) Improperly implemented security check for standard (CVE-ID: CVE-2021-30618)
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to incorrect implementation in DevTools in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it and gain access to sensitive information.
16) Spoofing attack (CVE-ID: CVE-2021-30619)
The vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to incorrect processing of user-supplied data in Autofill in Google Chrome. A remote attacker can spoof page content.
17) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2021-30620)
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to insufficient policy enforcement in Blink in Google Chrome. A remote attacker can trick the victim to visit a specially crafted website, bypass implemented security measures and gain access to sensitive information.
18) Spoofing attack (CVE-ID: CVE-2021-30621)
The vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to incorrect processing of user-supplied data in Autofill in Google Chrome. A remote attacker can spoof page content.
19) Use-after-free (CVE-ID: CVE-2021-30622)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error within WebApp Installs in Google Chrome. A remote attacker can trick the victim into visiting a specially crafted web page, trigger a use-after-free error and gain access to sensitive information.
20) Input validation error (CVE-ID: CVE-2021-36930)
The vulnerability allows a remote attacker to bypass implemented security restrictions.
The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can trick the victim to open a specially crafted file and bypass implemented security restrictions.
21) Cross-site scripting (CVE-ID: CVE-2021-26436)
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) 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 vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
Remediation
Install update from vendor's website.