Security update for tpm2-0-tss SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2023:0613-1 Final 1 1 2023-03-03T11:07:53Z current 2023-03-03T11:07:53Z 2023-03-03T11:07:53Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for tpm2-0-tss This update for tpm2-0-tss fixes the following issues: - CVE-2023-22745: Fixed a memory safety issue that could be exploited by local attackers with TPM access (bsc#1207325). The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). SUSE-2023-613,SUSE-SLE-Product-RT-15-SP3-2023-613,openSUSE-SLE-15.4-2023-613 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2023/suse-su-20230613-1/ Link for SUSE-SU-2023:0613-1 https://lists.suse.com/pipermail/sle-security-updates/2023-March/013966.html E-Mail link for SUSE-SU-2023:0613-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1207325 SUSE Bug 1207325 https://www.suse.com/security/cve/CVE-2023-22745/ SUSE CVE CVE-2023-22745 page SUSE Linux Enterprise Real Time 15 SP3 openSUSE Leap 15.4 libtss2-esys0-2.4.5-150300.3.6.1 libtss2-esys0-32bit-2.4.5-150300.3.6.1 libtss2-esys0-64bit-2.4.5-150300.3.6.1 libtss2-fapi0-2.4.5-150300.3.6.1 libtss2-mu0-2.4.5-150300.3.6.1 libtss2-mu0-32bit-2.4.5-150300.3.6.1 libtss2-mu0-64bit-2.4.5-150300.3.6.1 libtss2-rc0-2.4.5-150300.3.6.1 libtss2-sys0-2.4.5-150300.3.6.1 libtss2-sys0-32bit-2.4.5-150300.3.6.1 libtss2-sys0-64bit-2.4.5-150300.3.6.1 libtss2-tcti-device0-2.4.5-150300.3.6.1 libtss2-tcti-device0-32bit-2.4.5-150300.3.6.1 libtss2-tcti-device0-64bit-2.4.5-150300.3.6.1 libtss2-tcti-mssim0-2.4.5-150300.3.6.1 libtss2-tcti-mssim0-32bit-2.4.5-150300.3.6.1 libtss2-tcti-mssim0-64bit-2.4.5-150300.3.6.1 libtss2-tctildr0-2.4.5-150300.3.6.1 tpm2-0-tss-2.4.5-150300.3.6.1 tpm2-0-tss-devel-2.4.5-150300.3.6.1 libtss2-esys0-2.4.5-150300.3.6.1 as a component of SUSE Linux Enterprise Real Time 15 SP3 libtss2-fapi0-2.4.5-150300.3.6.1 as a component of SUSE Linux Enterprise Real Time 15 SP3 libtss2-mu0-2.4.5-150300.3.6.1 as a component of SUSE Linux Enterprise Real Time 15 SP3 libtss2-rc0-2.4.5-150300.3.6.1 as a component of SUSE Linux Enterprise Real Time 15 SP3 libtss2-sys0-2.4.5-150300.3.6.1 as a component of SUSE Linux Enterprise Real Time 15 SP3 libtss2-tcti-device0-2.4.5-150300.3.6.1 as a component of SUSE Linux Enterprise Real Time 15 SP3 libtss2-tcti-mssim0-2.4.5-150300.3.6.1 as a component of SUSE Linux Enterprise Real Time 15 SP3 libtss2-tctildr0-2.4.5-150300.3.6.1 as a component of SUSE Linux Enterprise Real Time 15 SP3 tpm2-0-tss-2.4.5-150300.3.6.1 as a component of SUSE Linux Enterprise Real Time 15 SP3 tpm2-0-tss-devel-2.4.5-150300.3.6.1 as a component of SUSE Linux Enterprise Real Time 15 SP3 libtss2-fapi0-2.4.5-150300.3.6.1 as a component of openSUSE Leap 15.4 libtss2-sys0-2.4.5-150300.3.6.1 as a component of openSUSE Leap 15.4 libtss2-sys0-32bit-2.4.5-150300.3.6.1 as a component of openSUSE Leap 15.4 tpm2-tss is an open source software implementation of the Trusted Computing Group (TCG) Trusted Platform Module (TPM) 2 Software Stack (TSS2). In versions prior to 4.1.0-rc0, 4.0.1, and 3.2.2-rc1, `Tss2_RC_SetHandler` and `Tss2_RC_Decode` both index into `layer_handler` with an 8 bit layer number, but the array only has `TPM2_ERROR_TSS2_RC_LAYER_COUNT` entries, so trying to add a handler for higher-numbered layers or decode a response code with such a layer number reads/writes past the end of the buffer. This Buffer overrun, could result in arbitrary code execution. An example attack would be a MiTM bus attack that returns 0xFFFFFFFF for the RC. Given the common use case of TPM modules an attacker must have local access to the target machine with local system privileges which allows access to the TPM system. Usually TPM access requires administrative privilege. Versions 4.1.0-rc0, 4.0.1, and 3.2.2-rc1 fix the issue. CVE-2023-22745 SUSE Linux Enterprise Real Time 15 SP3:libtss2-esys0-2.4.5-150300.3.6.1 SUSE Linux Enterprise Real Time 15 SP3:libtss2-fapi0-2.4.5-150300.3.6.1 SUSE Linux Enterprise Real Time 15 SP3:libtss2-mu0-2.4.5-150300.3.6.1 SUSE Linux Enterprise Real Time 15 SP3:libtss2-rc0-2.4.5-150300.3.6.1 SUSE Linux Enterprise Real Time 15 SP3:libtss2-sys0-2.4.5-150300.3.6.1 SUSE Linux Enterprise Real Time 15 SP3:libtss2-tcti-device0-2.4.5-150300.3.6.1 SUSE Linux Enterprise Real Time 15 SP3:libtss2-tcti-mssim0-2.4.5-150300.3.6.1 SUSE Linux Enterprise Real Time 15 SP3:libtss2-tctildr0-2.4.5-150300.3.6.1 SUSE Linux Enterprise Real Time 15 SP3:tpm2-0-tss-2.4.5-150300.3.6.1 SUSE Linux Enterprise Real Time 15 SP3:tpm2-0-tss-devel-2.4.5-150300.3.6.1 openSUSE Leap 15.4:libtss2-fapi0-2.4.5-150300.3.6.1 openSUSE Leap 15.4:libtss2-sys0-2.4.5-150300.3.6.1 openSUSE Leap 15.4:libtss2-sys0-32bit-2.4.5-150300.3.6.1 moderate 6.4 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2023/suse-su-20230613-1/ https://www.suse.com/security/cve/CVE-2023-22745.html CVE-2023-22745 https://bugzilla.suse.com/1207325 SUSE Bug 1207325