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 definition for GENERAL_NAME incorrectly specified the type of the x400Address field as ASN1_TYPE. This field is subsequently interpreted by the OpenSSL function GENERAL_NAME_cmp as an ASN1_TYPE rather than an ASN1_STRING. When CRL checking is enabled (i.e. the application sets the X509_V_FLAG_CRL_CHECK flag), this vulnerability may allow an attacker to pass arbitrary pointers to a memcmp call, enabling them to read memory contents or enact a denial of service. In most cases, the attack requires the attacker to provide both the certificate chain and CRL, neither of which need to have a valid signature. If the attacker only controls one of these inputs, the other input must already contain an X.400 address as a CRL distribution point, which is uncommon. As such, this vulnerability is most likely to only affect ap

X.400 address type confusion in X.509 GeneralName

There is a type confusion vulnerability relating to X.400 address proc ...

openssl-src vulnerable to Use-after-free following `BIO_new_NDEF`

Security update for openssl-1_1-livepatches

Important: compat-openssl11 security update

Important: compat-openssl10 security update

Vulnerable OpenSSL included in cryptography wheels

ELSA-2025-7937: compat-openssl11 security update (IMPORTANT)

ELSA-2025-7895: compat-openssl10 security update (IMPORTANT)

ELSA-2023-1335: openssl security update (IMPORTANT)

ELSA-2023-12326: openssl security update (IMPORTANT)

ELSA-2023-12297: openssl security update (IMPORTANT)

ELSA-2023-12210: openssl security update (IMPORTANT)

ELSA-2023-12205: openssl security update (IMPORTANT)

Уязвимость функции GENERAL_NAME_cmp библиотеки OpenSSL, позволяющая нарушителю вызвать отказ в обслуживании

ALT-PU-2023-6515: package `sssd` update to version 2.9.2-alt1

ALT-PU-2023-6187: package `sssd` update to version 2.9.2-alt1

ALT-PU-2023-1221: package `LibreSSL` update to version 3.6.2-alt1

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