CVEvulnerability

CVE-2021-38578

9.8 CRITICAL Published 2022-03-03 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2022-03-03
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.4 HIGH — CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:L
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
Weaknesses
CWE-124, CWE-787

Description

Existing CommBuffer checks in SmmEntryPoint will not catch underflow when computing BufferSize.

Affected configurations

• tianocore edk2 (<= 202202) • insyde kernel 5.0 • insyde kernel 5.1 • insyde kernel 5.2 • insyde kernel 5.3 • insyde kernel 5.4 • insyde kernel 5.5

Related

Weakness · CWE (2)

  • CWE-124 Buffer Underwrite weakness
  • CWE-787 Out-of-bounds Write weakness

References