SB2021091704 - Multiple vulnerabilities in Microsoft Edge
Published: September 17, 2021 Updated: December 1, 2021
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 8 secuirty vulnerabilities.
1) Use-after-free (CVE-ID: CVE-2021-30633)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error within the Indexed DB 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.
Note, the vulnerability is being actively exploited in-the-wild.
2) Use-after-free (CVE-ID: CVE-2021-30625)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error within the Selection 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.
3) Buffer overflow (CVE-ID: CVE-2021-30626)
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to a boundary error in ANGLE in Google Chrome. A remote attacker can trick the victim to visit a specially crafted webpage, trigger a stack-based buffer overflow and execute arbitrary code on the system.
4) Type Confusion (CVE-ID: CVE-2021-30627)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a type confusion error within the Blink layout component in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger a type confusion error and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
5) Stack-based buffer overflow (CVE-ID: CVE-2021-30628)
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to a boundary error in ANGLE in Google Chrome. A remote attacker can trick the victim to visit a specially crafted webpage, trigger a stack-based buffer overflow and execute arbitrary code on the system.
6) Use-after-free (CVE-ID: CVE-2021-30629)
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.
7) Improperly implemented security check for standard (CVE-ID: CVE-2021-30630)
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to incorrect implementation in Blink in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it and compromise the system.
8) Type Confusion (CVE-ID: CVE-2021-30631)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a type confusion error within the Blink layout component in Google Chrome. A remote attacker can create a specially crafted web page, trick the victim into visiting it, trigger a type confusion error 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://chromereleases.googleblog.com/2021/09/stable-channel-update-for-desktop.html
- https://crbug.com/1247766
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-30633
- https://crbug.com/1237533
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-30625
- https://crbug.com/1241036
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-30626
- https://crbug.com/1245786
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-30627
- https://crbug.com/1241123
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-30628
- https://crbug.com/1243646
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-30629
- https://crbug.com/1244568
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-30630
- https://crbug.com/1246932
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-30631