CVE-2022-28737

2023-07-2001:15:10

CWE-787

[email protected]

web.nvd.nist.gov

493

cve-2022-28737

overflow

handle_image()

out-of-bound writes

arbitrary code execution

nvd

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

8 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

23.1%

JSON

There’s a possible overflow in handle_image() when shim tries to load and execute crafted EFI executables; The handle_image() function takes into account the SizeOfRawData field from each section to be loaded. An attacker can leverage this to perform out-of-bound writes into memory. Arbitrary code execution is not discarded in such scenario.

Affected configurations

NVD

Node

redhatshimRange<15.6

CPENameOperatorVersion
redhat:shimredhat shimlt15.6

CPE	Name	Operator	Version
redhat:shim	redhat shim	lt	15.6

CNA Affected

[
  {
    "packageName": "shim",
    "product": "shim",
    "vendor": "Red Hat Bootloader Team",
    "repo": "https://github.com/rhboot/shim/",
    "platforms": [
      "Linux"
    ],
    "versions": [
      {
        "lessThan": "15.6",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      }
    ]
  }
]