Upstream information

CVE-2021-3746 at MITRE


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.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having important severity.

CVSS v3 Scores
Base Score 7.5
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Access Vector Network
Access Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
CVSSv3 Version 3.1
SUSE Bugzilla entry: 1189935 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
Container suse/sles/15.3/virt-launcher:
  • libtpms0 >= 0.8.2-3.3.1
SUSE Linux Enterprise Module for Server Applications 15 SP3
  • libtpms-devel >= 0.8.2-3.3.1
  • libtpms0 >= 0.8.2-3.3.1
SUSE MicroOS 5.1
  • libtpms0 >= 0.8.2-3.3.1
openSUSE Leap 15.3
  • libtpms-devel >= 0.8.2-3.3.1
  • libtpms0 >= 0.8.2-3.3.1
openSUSE Tumbleweed
  • libtpms-devel >= 0.8.4-2.2
  • libtpms0 >= 0.8.4-2.2
openSUSE Tumbleweed GA libtpms-devel-0.8.4-2.2

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
SUSE Linux Enterprise Micro 5.1 libtpms Released
SUSE Linux Enterprise Module for Server Applications 15 SP3 libtpms Released