Описание
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).
Список пакетов
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Image SLES15-SP5-SAP-Azure-LI-BYOS-Production
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Image SLES15-SP5-SAPCAL-Azure
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Image SLES15-SP5-SAPCAL-GCE
SUSE Linux Enterprise Micro 5.3
SUSE Linux Enterprise Module for Basesystem 15 SP4
openSUSE Leap 15.4
openSUSE Leap Micro 5.3
Ссылки
- Link for SUSE-SU-2023:0526-1
- E-Mail link for SUSE-SU-2023:0526-1
- SUSE Security Ratings
- SUSE Bug 1207325
- SUSE CVE CVE-2023-22745 page
Описание
tpm2-tss is an open source software implementation of the Trusted Computing Group (TCG) Trusted Platform Module (TPM) 2 Software Stack (TSS2). In affected versions `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.
Затронутые продукты
Ссылки
- CVE-2023-22745
- SUSE Bug 1207325