CVE-2021-3623

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. 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.

6.1 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 4.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

3.6 /10

CVSS v2.0 : LOW

V2 Legend

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

Exploitability : 3.9 / Impact : 4.9

Access Vector LOCAL

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact PARTIAL

References
Link Resource
https://bugzilla.redhat.com/show_bug.cgi?id=1976806 Issue Tracking Patch Third Party Advisory
https://github.com/stefanberger/libtpms/commit/2e6173c Patch Third Party Advisory
https://github.com/stefanberger/libtpms/commit/2f30d62 Patch Third Party Advisory
https://github.com/stefanberger/libtpms/commit/7981d9a Patch Third Party Advisory
https://github.com/stefanberger/libtpms/pull/223 Issue Tracking Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.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:*:*:*

Configuration 3 (hide)

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

29 Nov 2022, 16:57

Type Values Removed Values Added
References (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Z7KZSYMTE7Z4BBEZUWO2DIMQDWMGEP46/ - (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Z7KZSYMTE7Z4BBEZUWO2DIMQDWMGEP46/ - Mailing List, Third Party Advisory
CVSS v2 : 6.4
v3 : 8.2 		v2 : 3.6
v3 : 6.1
CPE cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*

23 May 2022, 18:16

Type Values Removed Values Added
References
  • (FEDORA) https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Z7KZSYMTE7Z4BBEZUWO2DIMQDWMGEP46/ -

10 Mar 2022, 01:40

Type Values Removed Values Added
CWE CWE-787
References (MISC) https://github.com/stefanberger/libtpms/commit/2e6173c - (MISC) https://github.com/stefanberger/libtpms/commit/2e6173c - Patch, Third Party Advisory
References (MISC) https://github.com/stefanberger/libtpms/commit/2f30d62 - (MISC) https://github.com/stefanberger/libtpms/commit/2f30d62 - Patch, Third Party Advisory
References (MISC) https://github.com/stefanberger/libtpms/pull/223 - (MISC) https://github.com/stefanberger/libtpms/pull/223 - Issue Tracking, Third Party Advisory
References (MISC) https://bugzilla.redhat.com/show_bug.cgi?id=1976806 - (MISC) https://bugzilla.redhat.com/show_bug.cgi?id=1976806 - Issue Tracking, Patch, Third Party Advisory
References (MISC) https://github.com/stefanberger/libtpms/commit/7981d9a - (MISC) https://github.com/stefanberger/libtpms/commit/7981d9a - Patch, Third Party Advisory
CVSS v2 : unknown
v3 : unknown 		v2 : 6.4
v3 : 8.2
CPE cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:advanced_virtualization:*:*:*
cpe:2.3:a:libtpms_project:libtpms:*:*:*:*:*:*:*:*

02 Mar 2022, 23:15

Type Values Removed Values Added
New CVE
Information

Published : 2022-03-02 23:15

Updated : 2024-02-04 22:29

NVD link : CVE-2021-3623

Mitre link : CVE-2021-3623

CVE.ORG link : CVE-2021-3623

JSON object : View

Products Affected

redhat

  • enterprise_linux

libtpms_project

  • libtpms

fedoraproject

  • fedora
CWE
CWE-787

Out-of-bounds Write