ICSA-25-226-21

icsaUScisa_csaf_ot

Siemens BFCClient

Advisory ansehen veröffentlicht 2025-08-12

Siemens BFCClient contains multiple vulnerabilities in the integrated OpenSSL component that could allow an attacker to read memory contents, to change the application behaviour or to create a denial of service condition. Siemens has released a new version for BFCClient and recommends to update to the latest version.

01

beschreibt (5)

Zugehörige CVEs.

IDSchweregrad ausnutzbar
CVE-2023-0464UShigh7.5Exploit
A security vulnerability has been identified in all supported versions of OpenSSL related to the verification of X.509 certificate chains that include policy constraints. Attacke…
CVE-2023-0286UShigh7.4—
There is a type confusion vulnerability relating to X.400 address processing inside an X.509 GeneralName. X.400 addresses were parsed as an ASN1_STRING but the public structure def…
CVE-2022-0778UShigh7.5Exploit
The BN_mod_sqrt() function, which computes a modular square root, contains a bug that can cause it to loop forever for non-prime moduli. Internally this function is used when parsi…
CVE-2021-3712UShigh7.4Exploit
ASN.1 strings are represented internally within OpenSSL as an ASN1_STRING structure which contains a buffer holding the string data and a field holding the buffer length. This cont…
CVE-2021-3711UScritical9.8—
In order to decrypt SM2 encrypted data an application is expected to call the API function EVP_PKEY_decrypt(). Typically an application will call this function twice. The first tim…
02

Referenzen

Externe Belege — Patches, Meldungen, Analysen.

03

Behebungen (6)

  • MitigationBFCClient

    Disable CRL (certification revocation list) checking, if possible

  • BehobenBFCClient

    Update to V2.17 or later version. Contact customer support to obtain the update

  • BehobenBFCClient

    Update to V2.17 or later version. Contact customer support to obtain the update

  • BehobenBFCClient

    Update to V2.17 or later version. Contact customer support to obtain the update

  • BehobenBFCClient

    Update to V2.17 or later version. Contact customer support to obtain the update

  • BehobenBFCClient

    Update to V2.17 or later version. Contact customer support to obtain the update

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