A vulnerability classified as critical has been found in EDK II (version unknown). This affects an unknown function of the component DxeCore. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Stack overflow in DxeCore for EDK II may allow an unauthenticated user to potentially enable escalation of privilege, information disclosure and/or denial of service via local access.

The bug was discovered 05/09/2019. The weakness was shared 03/27/2019 (Website). The advisory is shared at edk2-docs.gitbooks.io. This vulnerability is uniquely identified as CVE-2018-12183 since 06/11/2018. An attack has to be approached locally. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The entries 132488, 132487, 132486 and 132485 are related to this item.

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• EDK II

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