Heap Overflow Vulnerability in EDK II by TianoCore
CVE-2021-28211

6.7MEDIUM

Key Information:

Vendor

Tianocore

Status
Edk Ii
Vendor
CVE Published:
11 June 2021

What is CVE-2021-28211?

A heap overflow vulnerability has been identified in the LzmaUefiDecompressGetInfo function within the EDK II firmware. This flaw may allow attackers to exploit memory management errors, potentially leading to unexpected control over system processes. Users are advised to update their systems to the latest patched version to mitigate associated risks.

Affected Version(s)

EDK II edk2-stable202008

References

https://bugzilla.tianocore.org/show_bug.cgi?id=1816
x_refsource_MISC

CVSS V3.1

Score:
6.7
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.