Microsoft Edge memory corruption

Summaryinfo

A vulnerability was found in Microsoft Edge. It has been rated as critical. The impacted element is an unknown function. This manipulation causes memory corruption. This vulnerability is tracked as CVE-2019-0780. The attack is possible to be carried out remotely. No exploit exists. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability was found in Microsoft Edge (Web Browser) (version unknown). It has been declared as critical. Affected by this vulnerability is an unknown function. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

A remote code execution vulnerability exists in the way that Microsoft browsers access objects in memory, aka 'Microsoft Browser Memory Corruption Vulnerability'.

The bug was discovered 03/12/2019. The weakness was disclosed 03/12/2019 as confirmed security update guide (Website). The advisory is shared at portal.msrc.microsoft.com. The public release has been coordinated in cooperation with Microsoft. This vulnerability is known as CVE-2019-0780 since 11/26/2018. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 05/16/2020). The advisory points out:

A remote code execution vulnerability exists in the way that Microsoft browsers access objects in memory. The vulnerability could corrupt memory in a way that could allow an attacker to execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, the attacker could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 100363 (Microsoft Internet Explorer Security Update for March 2019).

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The entries VDB-131618, VDB-131620, VDB-131621 and VDB-131623 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Web Browser

Vendor

• Microsoft

Name

• Edge

License

• commercial

Website

• Vendor: https://www.microsoft.com/

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If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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