Buffer overflow in Microsoft Edge - CVE-2023-21795
Published: January 18, 2023
Vulnerability identifier: #VU71291
CSH Severity: High
CVSS v4: 7.5 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-21795
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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 content. A remote attacker can trick the victim to open a specially crafted website, trigger memory corruption, escape browser's sandbox and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Microsoft Edge
Gentoo Linux
www-client/microsoft-edge
www-client/chromium-bin
www-client/google-chrome
www-client/chromium
Gentoo Linux
www-client/microsoft-edge
www-client/chromium-bin
www-client/google-chrome
www-client/chromium
How to mitigate CVE-2023-21795
Install updates from vendor's website.
Microsoft Edge - addressed in versions 108.0.1462.87, 109.0.1518.55
www-client/microsoft-edge - update to 109.0.1518.61
www-client/chromium-bin - update to 109.0.5414.74
www-client/google-chrome - update to 109.0.5414.74
www-client/chromium - update to 109.0.5414.74-r1
www-client/microsoft-edge - update to 109.0.1518.61
www-client/chromium-bin - update to 109.0.5414.74
www-client/google-chrome - update to 109.0.5414.74
www-client/chromium - update to 109.0.5414.74-r1