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nvd[email protected]NVD:CVE-2021-3696
HistoryJul 06, 2022 - 4:15 p.m.

CVE-2021-3696

2022-07-0616:15:08
CWE-787
[email protected]
web.nvd.nist.gov
1

6.9 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

4.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

LOW

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

0.0005 Low

EPSS

Percentile

18.1%

JSON

A heap out-of-bounds write may heppen during the handling of Huffman tables in the PNG reader. This may lead to data corruption in the heap space. Confidentiality, Integrity and Availablity impact may be considered Low as it’s very complex to an attacker control the encoding and positioning of corrupted Huffman entries to achieve results such as arbitrary code execution and/or secure boot circumvention. This flaw affects grub2 versions prior grub-2.12.

Affected configurations

NVD
Node
gnugrub2Range2.00–2.12
Node
redhatdeveloper_toolsMatch1.0
OR
redhatopenshiftMatch3.0
OR
redhatenterprise_linuxMatch8.0
OR
redhatenterprise_linuxMatch8.1
OR
redhatenterprise_linuxMatch8.4
OR
redhatenterprise_linuxMatch9.0
OR
redhatenterprise_linux_eusMatch8.2
OR
redhatenterprise_linux_eusMatch8.4
OR
redhatenterprise_linux_eusMatch8.6
OR
redhatenterprise_linux_eusMatch9.0
OR
redhatenterprise_linux_for_power_little_endianMatch8.0
OR
redhatenterprise_linux_for_power_little_endianMatch9.0
OR
redhatenterprise_linux_for_power_little_endian_eusMatch8.2
OR
redhatenterprise_linux_for_power_little_endian_eusMatch8.4
OR
redhatenterprise_linux_for_power_little_endian_eusMatch8.6
OR
redhatenterprise_linux_for_power_little_endian_eusMatch9.0
OR
redhatenterprise_linux_server_ausMatch8.2
OR
redhatenterprise_linux_server_ausMatch8.4
OR
redhatenterprise_linux_server_ausMatch8.6
OR
redhatenterprise_linux_server_for_power_little_endian_update_services_for_sap_solutionsMatch8.1
OR
redhatenterprise_linux_server_for_power_little_endian_update_services_for_sap_solutionsMatch8.2
OR
redhatenterprise_linux_server_for_power_little_endian_update_services_for_sap_solutionsMatch8.4
OR
redhatenterprise_linux_server_for_power_little_endian_update_services_for_sap_solutionsMatch8.6
OR
redhatenterprise_linux_server_for_power_little_endian_update_services_for_sap_solutionsMatch9.0
OR
redhatenterprise_linux_server_tusMatch8.2
OR
redhatenterprise_linux_server_tusMatch8.4
OR
redhatenterprise_linux_server_tusMatch8.6
Node
redhatopenshift_container_platformMatch4.6
OR
redhatopenshift_container_platformMatch4.9
OR
redhatopenshift_container_platformMatch4.10
AND
redhatenterprise_linuxMatch8.0
Node
redhatcodeready_linux_builderMatch-
AND
redhatenterprise_linuxMatch8.0
OR
redhatenterprise_linuxMatch9.0
OR
redhatenterprise_linux_eusMatch8.2
OR
redhatenterprise_linux_eusMatch8.4
OR
redhatenterprise_linux_eusMatch8.6
OR
redhatenterprise_linux_eusMatch9.0
Node
netappontap_select_deploy_administration_utilityMatch-

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suse 2
fedora 2
almalinux 2
osv 5
redos 1
redhat 9
amazon 1
rocky 2
gentoo 1
ubuntu 1
hp 2
avleonov 1
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2022-06-16 00:00:00
osv
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Important: grub2, mokutil, shim, and shim-unsigned-x64 security update
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redhat
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6.9 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

4.5 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

LOW

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

0.0005 Low

EPSS

Percentile

18.1%

JSON
Related for NVD:CVE-2021-3696
cbl_mariner2cvelist1veracode1redhatcve1prion1cve1debiancve1ubuntucve1nessus44openvas28photon2rosalinux1oraclelinux6suse2fedora2almalinux2osv5redos1redhat9amazon1rocky2gentoo1ubuntu1hp2avleonov1