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CVE-2021-3746

nvd nist
Published: Oct 19, 2021Modified: Nov 21, 2024

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6.5
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Exploitability: 2.8 / Impact: 3.6
Source: NVD

Description

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.

Affected (6)

Libtpms Project
1 product
Libtpms
Fedoraproject
1 product
Fedora
Redhat
1 product
Enterprise Linux
Configuration A
3 vulnerable
Vulnerable SoftwareAffected Versions
Libtpms Project
Libtpms
From 0.6.0 to 0.6.6
Libtpms
From 0.7.0 to 0.7.9
Libtpms
From 0.8.0 to 0.8.5
Configuration B
1 vulnerable
Vulnerable SoftwareAffected Versions
Fedora
Version 34
Configuration C
2 vulnerable
Vulnerable SoftwareAffected Versions
Redhat
Enterprise Linux
Version 8.0
Enterprise Linux
Version 8.0

Related CWEs

CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.

References (2)

Source: secalert@redhat.com
Issue TrackingPatchThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Issue TrackingPatchThird Party Advisory

Timeline

No history available yet.