Zhenhuan Li

A remote code execution issue exists due to the way the Chakra scripting engine handles objects in memory. This could allow an attacker to execute arbitrary code in the context of the current user, potentially gaining the same user rights as the current user. If the current user has administrative rights, an attacker could take control of the affected system, install programs, view, change, or delete data, or create new accounts with full user rights.

The issue is caused by a buffer overflow in the ChakraCore JavaScript engine of Microsoft Edge, allowing a remote attacker to execute arbitrary code in the context of the current user by using a specially crafted web page. This could lead to memory corruption, enabling the attacker to gain the same user rights as the current user. If the current user has administrative rights, the attacker could take control of the affected system, install programs, view, change, or delete data, or create new accounts with full user rights.

The issue is related to errors in handling objects in memory by the ChakraCore JavaScript engine. Exploitation of this issue could allow a remote attacker to impact the confidentiality, integrity, and availability of protected information. An information disclosure issue exists when Chakra improperly discloses the contents of its memory, potentially providing an attacker with information to further compromise a user's computer or data. To exploit the issue, an attacker must know the memory address of where the object was created.

Name of the Vulnerable Software and Affected Versions: Microsoft Edge (affected versions not specified) Description: An information disclosure issue exists due to improper handling of objects in memory by Microsoft Edge. This could allow an attacker to obtain information that could be used to further compromise the user's system. Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.