Lucene search

RedhatCVE-2021-3697

HistoryJul 06, 2022 - 4:15 p.m.

CVE-2021-3697

2022-07-0616:15:08

CWE-787

redhat

web.nvd.nist.gov

142

cve-2021-3697

jpeg reader

data underflow

heap

data corruption

code execution

secure boot

vulnerability

nvd

grub2

CVSS2

4.4

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:L/AC:M/Au:N/C:P/I:P/A:P

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

7.6

Confidence

High

EPSS

Percentile

15.7%

JSON

A crafted JPEG image may lead the JPEG reader to underflow its data pointer, allowing user-controlled data to be written in heap. To a successful to be performed the attacker needs to perform some triage over the heap layout and craft an image with a malicious format and payload. This vulnerability can lead to data corruption and eventual code execution or secure boot circumvention. This flaw affects grub2 versions prior grub-2.12.

Affected configurations

Nvd

Vulners

Node

gnugrub2Range2.00–2.12

Node

redhatdeveloper_toolsMatch1.0

redhatopenshiftMatch3.0

redhatenterprise_linuxMatch8.0

redhatenterprise_linuxMatch8.1

redhatenterprise_linuxMatch8.4

redhatenterprise_linuxMatch9.0

redhatenterprise_linux_eusMatch8.2

redhatenterprise_linux_eusMatch8.4

redhatenterprise_linux_eusMatch8.6

redhatenterprise_linux_eusMatch9.0

redhatenterprise_linux_for_power_little_endianMatch8.0

redhatenterprise_linux_for_power_little_endianMatch9.0

redhatenterprise_linux_for_power_little_endian_eusMatch8.2

redhatenterprise_linux_for_power_little_endian_eusMatch8.4

redhatenterprise_linux_for_power_little_endian_eusMatch8.6

redhatenterprise_linux_for_power_little_endian_eusMatch9.0

redhatenterprise_linux_server_ausMatch8.2

redhatenterprise_linux_server_ausMatch8.4

redhatenterprise_linux_server_ausMatch8.6

redhatenterprise_linux_server_for_power_little_endian_update_services_for_sap_solutionsMatch8.1

redhatenterprise_linux_server_for_power_little_endian_update_services_for_sap_solutionsMatch8.2

redhatenterprise_linux_server_for_power_little_endian_update_services_for_sap_solutionsMatch8.4

redhatenterprise_linux_server_for_power_little_endian_update_services_for_sap_solutionsMatch8.6

redhatenterprise_linux_server_for_power_little_endian_update_services_for_sap_solutionsMatch9.0

redhatenterprise_linux_server_tusMatch8.2

redhatenterprise_linux_server_tusMatch8.4

redhatenterprise_linux_server_tusMatch8.6

Node

redhatopenshift_container_platformMatch4.6

redhatopenshift_container_platformMatch4.9

redhatopenshift_container_platformMatch4.10

AND

redhatenterprise_linuxMatch8.0

Node

redhatcodeready_linux_builderMatch-

AND

redhatenterprise_linuxMatch8.0

redhatenterprise_linuxMatch9.0

redhatenterprise_linux_eusMatch8.2

redhatenterprise_linux_eusMatch8.4

redhatenterprise_linux_eusMatch8.6

redhatenterprise_linux_eusMatch9.0

VendorProductVersionCPE
gnugrub2*cpe:2.3:a:gnu:grub2:*:*:*:*:*:*:*:*
redhatdeveloper_tools1.0cpe:2.3:a:redhat:developer_tools:1.0:*:*:*:*:*:*:*
redhatopenshift3.0cpe:2.3:a:redhat:openshift:3.0:*:*:*:*:*:*:*
redhatenterprise_linux8.0cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
redhatenterprise_linux8.1cpe:2.3:o:redhat:enterprise_linux:8.1:*:*:*:*:*:*:*
redhatenterprise_linux8.4cpe:2.3:o:redhat:enterprise_linux:8.4:*:*:*:*:*:*:*
redhatenterprise_linux9.0cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
redhatenterprise_linux_eus8.2cpe:2.3:o:redhat:enterprise_linux_eus:8.2:*:*:*:*:*:*:*
redhatenterprise_linux_eus8.4cpe:2.3:o:redhat:enterprise_linux_eus:8.4:*:*:*:*:*:*:*
redhatenterprise_linux_eus8.6cpe:2.3:o:redhat:enterprise_linux_eus:8.6:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
gnu	grub2	*	cpe:2.3:a:gnu:grub2::::::::
redhat	developer_tools	1.0	cpe:2.3:a:redhat:developer_tools:1.0:::::::*
redhat	openshift	3.0	cpe:2.3:a:redhat:openshift:3.0:::::::*
redhat	enterprise_linux	8.0	cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*
redhat	enterprise_linux	8.1	cpe:2.3:o:redhat:enterprise_linux:8.1:::::::*
redhat	enterprise_linux	8.4	cpe:2.3:o:redhat:enterprise_linux:8.4:::::::*
redhat	enterprise_linux	9.0	cpe:2.3:o:redhat:enterprise_linux:9.0:::::::*
redhat	enterprise_linux_eus	8.2	cpe:2.3:o:redhat:enterprise_linux_eus:8.2:::::::*
redhat	enterprise_linux_eus	8.4	cpe:2.3:o:redhat:enterprise_linux_eus:8.4:::::::*
redhat	enterprise_linux_eus	8.6	cpe:2.3:o:redhat:enterprise_linux_eus:8.6:::::::*

Rows per page:

1-10 of 321

CNA Affected

[
  {
    "product": "grub2",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "grub-2.06"
      }
    ]
  }
]