Описание
libtpms, a library that provides software emulation of a Trusted Platform Module, has a flaw in versions 0.10.0 and 0.10.1. The commonly used integration of libtpms with OpenSSL 3.x contained a vulnerability related to the returned IV (initialization vector) when certain symmetric ciphers were used. Instead of returning the last IV it returned the initial IV to the caller, thus weakening the subsequent encryption and decryption steps. The highest threat from this vulnerability is to data confidentiality. Version 0.10.2 fixes the issue. No known workarounds are available.
A flaw was found in libtpms, a library for Trusted Platform Module (TPM) emulation. An attacker with low privileges could exploit this vulnerability when libtpms is integrated with OpenSSL 3.x and certain symmetric ciphers are used. The library incorrectly returns the initial Initialization Vector (IV) instead of the last one, weakening subsequent encryption and decryption operations and potentially compromising data confidentiality.
Отчет
This vulnerability is rated Moderate for Red Hat. Red Hat Enterprise Linux and Red Hat In-Vehicle OS are not affected as the libtpms shipped with those products doesn't contain the vulnerable code. The flaw in libtpms, when integrated with OpenSSL 3.x, leads to incorrect Initialization Vector (IV) handling, potentially compromising data confidentiality in affected Fedora releases.
Меры по смягчению последствий
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 10 | libtpms | Not affected | ||
| Red Hat Enterprise Linux 8 | virt:rhel/libtpms | Not affected | ||
| Red Hat Enterprise Linux 9 | libtpms | Not affected |
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Дополнительная информация
Статус:
EPSS
6.5 Medium
CVSS3
Связанные уязвимости
libtpms, a library that provides software emulation of a Trusted Platform Module, has a flaw in versions 0.10.0 and 0.10.1. The commonly used integration of libtpms with OpenSSL 3.x contained a vulnerability related to the returned IV (initialization vector) when certain symmetric ciphers were used. Instead of returning the last IV it returned the initial IV to the caller, thus weakening the subsequent encryption and decryption steps. The highest threat from this vulnerability is to data confidentiality. Version 0.10.2 fixes the issue. No known workarounds are available.
libtpms, a library that provides software emulation of a Trusted Platform Module, has a flaw in versions 0.10.0 and 0.10.1. The commonly used integration of libtpms with OpenSSL 3.x contained a vulnerability related to the returned IV (initialization vector) when certain symmetric ciphers were used. Instead of returning the last IV it returned the initial IV to the caller, thus weakening the subsequent encryption and decryption steps. The highest threat from this vulnerability is to data confidentiality. Version 0.10.2 fixes the issue. No known workarounds are available.
libtpms returns wrong initialization vector when certain symmetric ciphers are used
libtpms, a library that provides software emulation of a Trusted Platf ...
Уязвимость библиотеки libtpms, связанная с использованием криптографических алгоритмов, содержащих дефекты, позволяющая нарушителю получить несанкционированный доступ к конфиденциальной информации
EPSS
6.5 Medium
CVSS3