CVE-2021-3623

A flaw was found in libtpms. The flaw can be triggered by specially-crafted TPM 2 command packets containing illegal values and may lead to an out-of-bounds access when the volatile state of the TPM 2 is marshalled/written or unmarshalled/read. The highest threat from this vulnerability is to system availability.

CVSS v3.0 8.2 HIGH
CVSS v2.0 6.4 MEDIUM

8.2^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 3.9 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

6.4^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 10.0 / Impact : 4.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact PARTIAL

References

Link	Resource
https://github.com/stefanberger/libtpms/pull/223	Issue Tracking Third Party Advisory
https://github.com/stefanberger/libtpms/commit/2e6173c	Patch Third Party Advisory
https://github.com/stefanberger/libtpms/commit/7981d9a	Patch Third Party Advisory
https://github.com/stefanberger/libtpms/commit/2f30d62	Patch Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1976806	Issue Tracking Patch Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Z7KZSYMTE7Z4BBEZUWO2DIMQDWMGEP46/

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:redhat:enterprise_linux:8.0:*:*:*:advanced_virtualization:*:*:*

Information

Published : 2022-03-02 23:15

Updated : 2022-05-23 18:16

NVD link : CVE-2021-3623

Mitre link : CVE-2021-3623

JSON object : View

Products Affected

libtpms_project

libtpms

redhat

enterprise_linux

CWE

CWE-787

Out-of-bounds Write

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