GLSA 202107-10: TCG TPM2 Software Stack: Information disclosure

http://security.gentoo.org/

Severity:	normal
Title:	TCG TPM2 Software Stack: Information disclosure
Date:	07/07/2021
Bugs:	#746563
ID:	202107-10

Synopsis

A bug in TCG TPM2 Software Stack may result in information disclosure to a local attacker.

Background

TCG TPM2 Software Stack is a library to interface with trusted platform modules.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
app-crypt/tpm2-tss	< 2.4.3	>= 2.4.3	All supported architectures

Description

TCG TPM2 Software Stack did not appropriately apply FAPI policies to protect data encrypted with the trusted platform module.

Impact

Data encrypted using TCG TPM2 Software Stack (tpm2-tss) may not be protected from an attacker.

Workaround

There is no known workaround at this time.

Resolution

All tpm2-tss users should upgrade to the latest version:

      # emerge --sync
      # emerge --ask --oneshot --verbose ">=app-crypt/tpm2-tss-2.4.3"

References

CVE-2020-24455

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-202107-10.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.