FKIE_CVE-2026-21444

Vulnerability from fkie_nvd - Published: 2026-01-02 19:15 - Updated: 2026-02-25 15:18
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Summary
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.
References
security-advisories@github.comhttps://github.com/stefanberger/libtpms/commit/33c9ff074cb16c1841ce7d7f33643c17c426743aPatch
security-advisories@github.comhttps://github.com/stefanberger/libtpms/issues/541Exploit, Issue Tracking
security-advisories@github.comhttps://github.com/stefanberger/libtpms/security/advisories/GHSA-7jxr-4j3g-p34fPatch, Vendor Advisory
Impacted products
Vendor Product Version
libtpms_project libtpms *
To clipboard 

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      "value": "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."
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      "lang": "es",
      "value": "libtpms, una biblioteca que proporciona emulaci\u00f3n de software de un M\u00f3dulo de Plataforma Confiable, tiene un fallo en las versiones 0.10.0 y 0.10.1. La integraci\u00f3n com\u00fanmente utilizada de libtpms con OpenSSL 3.x conten\u00eda una vulnerabilidad relacionada con el IV (vector de inicializaci\u00f3n) devuelto cuando se utilizaban ciertos cifrados sim\u00e9tricos. En lugar de devolver el \u00faltimo IV, devolv\u00eda el IV inicial al llamador, debilitando as\u00ed los pasos subsiguientes de cifrado y descifrado. La mayor amenaza de esta vulnerabilidad es para la confidencialidad de los datos. La versi\u00f3n 0.10.2 corrige el problema. No se conocen soluciones alternativas disponibles."
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  "id": "CVE-2026-21444",
  "lastModified": "2026-02-25T15:18:34.413",
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          "confidentialityImpact": "HIGH",
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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