CVE-2021-3746

A flaw was found in the libtpms code that may cause access beyond the boundary of internal buffers. The vulnerability is triggered by specially-crafted TPM2 command packets that then trigger the issue when the state of the TPM2's volatile state is written. The highest threat from this vulnerability is to system availability. This issue affects libtpms versions before 0.8.5, before 0.7.9 and before 0.6.6.

CVSS v3 6.5 MEDIUM
CVSS v2.0 7.1 HIGH

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

7.1^/10

CVSS v2.0 : HIGH

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

Exploitability : 8.6 / Impact : 6.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact COMPLETE

References

Link	Resource
https://bugzilla.redhat.com/show_bug.cgi?id=1998588	Issue Tracking Patch Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1998588	Issue Tracking Patch Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:libtpms_project:libtpms::::::::
	cpe:2.3:a:libtpms_project:libtpms::::::::
	cpe:2.3:a:libtpms_project:libtpms::::::::

Configuration 2 (hide)

cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*

Configuration 3 (hide)

OR	cpe:2.3:o:redhat:enterprise_linux:8.0::::-:::
	cpe:2.3:o:redhat:enterprise_linux:8.0::::advanced_virtualization:::

History

21 Nov 2024, 06:22

Type	Values Removed	Values Added
References	~~() https://bugzilla.redhat.com/show_bug.cgi?id=1998588 - Issue Tracking, Patch, Third Party Advisory~~	() https://bugzilla.redhat.com/show_bug.cgi?id=1998588 - Issue Tracking, Patch, Third Party Advisory

Information

Published : 2021-10-19 15:15

Updated : 2024-11-21 06:22

NVD link : CVE-2021-3746

Mitre link : CVE-2021-3746

CVE.ORG link : CVE-2021-3746

JSON object : View

Products Affected

libtpms_project

libtpms

fedoraproject

fedora

redhat

enterprise_linux

CWE

CWE-119

Improper Restriction of Operations within the Bounds of a Memory Buffer

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