USN-6796-1: TPM2 Software Stack vulnerabilities

Releases

• Ubuntu 24.04 LTS
• Ubuntu 23.10
• Ubuntu 22.04 LTS
• Ubuntu 20.04 LTS

Packages

• tpm2-tss - TPM2 Software Stack library

Details

Fergus Dall discovered that TPM2 Software Stack did not properly handle
layer arrays. An attacker could possibly use this issue to cause
TPM2 Software Stack to crash, resulting in a denial of service, or
possibly execute arbitrary code.
(CVE-2023-22745)

Jurgen Repp and Andreas Fuchs discovered that TPM2 Software Stack did not
validate the quote data after deserialization. An attacker could generate
an arbitrary quote and cause TPM2 Software Stack to have unknown behavior.
(CVE-2024-29040)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 24.04

• libtss2-esys-3.0.2-0t64 - 4.0.1-7.1ubuntu5.1
• libtss2-fapi1t64 - 4.0.1-7.1ubuntu5.1
• libtss2-mu-4.0.1-0t64 - 4.0.1-7.1ubuntu5.1
• libtss2-policy0t64 - 4.0.1-7.1ubuntu5.1
• libtss2-rc0t64 - 4.0.1-7.1ubuntu5.1
• libtss2-sys1t64 - 4.0.1-7.1ubuntu5.1
• libtss2-tcti-cmd0t64 - 4.0.1-7.1ubuntu5.1
• libtss2-tcti-device0t64 - 4.0.1-7.1ubuntu5.1
• libtss2-tcti-libtpms0t64 - 4.0.1-7.1ubuntu5.1
• libtss2-tcti-mssim0t64 - 4.0.1-7.1ubuntu5.1
• libtss2-tcti-pcap0t64 - 4.0.1-7.1ubuntu5.1
• libtss2-tcti-spi-helper0t64 - 4.0.1-7.1ubuntu5.1
• libtss2-tcti-swtpm0t64 - 4.0.1-7.1ubuntu5.1
• libtss2-tctildr0t64 - 4.0.1-7.1ubuntu5.1

Ubuntu 23.10

• libtss2-esys-3.0.2-0 - 4.0.1-3ubuntu1.1
• libtss2-fapi1 - 4.0.1-3ubuntu1.1
• libtss2-mu0 - 4.0.1-3ubuntu1.1
• libtss2-policy0 - 4.0.1-3ubuntu1.1
• libtss2-rc0 - 4.0.1-3ubuntu1.1
• libtss2-sys1 - 4.0.1-3ubuntu1.1
• libtss2-tcti-cmd0 - 4.0.1-3ubuntu1.1
• libtss2-tcti-device0 - 4.0.1-3ubuntu1.1
• libtss2-tcti-libtpms0 - 4.0.1-3ubuntu1.1
• libtss2-tcti-mssim0 - 4.0.1-3ubuntu1.1
• libtss2-tcti-pcap0 - 4.0.1-3ubuntu1.1
• libtss2-tcti-spi-helper0 - 4.0.1-3ubuntu1.1
• libtss2-tcti-swtpm0 - 4.0.1-3ubuntu1.1
• libtss2-tctildr0 - 4.0.1-3ubuntu1.1

Ubuntu 22.04

• libtss2-esys-3.0.2-0 - 3.2.0-1ubuntu1.1
• libtss2-fapi1 - 3.2.0-1ubuntu1.1
• libtss2-mu0 - 3.2.0-1ubuntu1.1
• libtss2-rc0 - 3.2.0-1ubuntu1.1
• libtss2-sys1 - 3.2.0-1ubuntu1.1
• libtss2-tcti-cmd0 - 3.2.0-1ubuntu1.1
• libtss2-tcti-device0 - 3.2.0-1ubuntu1.1
• libtss2-tcti-mssim0 - 3.2.0-1ubuntu1.1
• libtss2-tcti-swtpm0 - 3.2.0-1ubuntu1.1
• libtss2-tctildr0 - 3.2.0-1ubuntu1.1

Ubuntu 20.04

• libtss2-esys0 - 2.3.2-1ubuntu0.20.04.2

In general, a standard system update will make all the necessary changes.

References

• CVE-2023-22745
• CVE-2024-29040