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debiancveDebian Security Bug TrackerDEBIANCVE:CVE-2021-38578
HistoryMar 03, 2022 - 10:15 p.m.

CVE-2021-38578

2022-03-0322:15:08
Debian Security Bug Tracker
security-tracker.debian.org
41
smmentrypoint
commbuffer
underflow
buffersize
vulnerability

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

9.3

Confidence

High

EPSS

0.002

Percentile

55.9%

JSON

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

Related

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Design/Logic Flaw
2022-03-03 22:15:00
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Security fix for the ALT Linux 10 package edk2 version 20221117-alt1
2022-12-21 00:00:00
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2023-05-09 00:00:00
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(RHSA-2023:2165) Important: edk2 security, bug fix, and enhancement update
2023-05-09 05:02:08
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CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

9.3

Confidence

High

EPSS

0.002

Percentile

55.9%

JSON
Related for DEBIANCVE:CVE-2021-38578
nessus20openvas14cve1nvd1alpinelinux1ubuntucve1prion1altlinux1osv3redhatcve1cvelist1almalinux1redhat2oraclelinux1ics1