SB2021081916 - Multiple vulnerabilities in Microsoft Edge
Published: August 19, 2021
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 6 secuirty vulnerabilities.
1) Type Confusion (CVE-ID: CVE-2021-30598)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a type confusion error in V8. 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.
2) Type Confusion (CVE-ID: CVE-2021-30599)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a type confusion error in V8. 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.
3) Use-after-free (CVE-ID: CVE-2021-30601)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error in Extensions API. A remote attacker can trick the victim to visit a specially crafted web page, trigger a use-after-free error and execute arbitrary code on the system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
4) Use-after-free (CVE-ID: CVE-2021-30602)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error in WebRTC. A remote attacker can trick the victim to visit a specially crafted web page, trigger a use-after-free error and execute arbitrary code on the system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
5) Race condition (CVE-ID: CVE-2021-30603)
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to a race condition in WebAudio. A remote attacker can trick the victim to visit a specially crafted webpage and execute arbitrary code on the target system.
6) Use-after-free (CVE-ID: CVE-2021-30604)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error in ANGLE. A remote attacker can trick the victim to visit a specially crafted web page, trigger a use-after-free error and execute arbitrary code on the system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
Remediation
Install update from vendor's website.
References
- https://chromereleases.googleblog.com/2021/08/stable-channel-update-for-desktop.html
- https://bugs.chromium.org/p/chromium/issues/detail?id=1234764
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-30598
- https://bugs.chromium.org/p/chromium/issues/detail?id=1234770
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-30599
- https://bugs.chromium.org/p/chromium/issues/detail?id=1234009
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-30601
- https://bugs.chromium.org/p/chromium/issues/detail?id=1230767
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-30602
- https://bugs.chromium.org/p/chromium/issues/detail?id=1233564
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-30603
- https://bugs.chromium.org/p/chromium/issues/detail?id=1234829
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-30604