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Уязвимость функции gnutls_x509_crt_check_hostname2() файла lib/x509/hostname-verify.c:111,245-265 криптографической библиотеки GnuTLS, позволяющая нарушителю осуществить подмену сервера и получить несанкционированный доступ к защищаемой информации

A flaw was found in gnutls. A remote attacker could exploit this vulnerability by presenting a specially crafted certificate that contains Uniform Resource Identifier (URI) or Service (SRV) Subject Alternative Names (SANs). This could cause the certificate validation process to incorrectly fall back to checking DNS hostnames against the Common Name (CN), potentially allowing the attacker to spoof legitimate services or intercept sensitive information.

A flaw was found in gnutls. A remote attacker could exploit this vulnerability by presenting a specially crafted certificate that contains Uniform Resource Identifier (URI) or Service (SRV) Subject Alternative Names (SANs). This could cause the certificate validation process to incorrectly fall back to checking DNS hostnames against the Common Name (CN), potentially allowing the attacker to spoof legitimate services or intercept sensitive information.

A flaw was found in gnutls. A remote attacker could exploit this vulnerability by presenting a specially crafted certificate that contains Uniform Resource Identifier (URI) or Service (SRV) Subject Alternative Names (SANs). This could cause the certificate validation process to incorrectly fall back to checking DNS hostnames against the Common Name (CN), potentially allowing the attacker to spoof legitimate services or intercept sensitive information.

Gnutls: gnutls: certificate validation bypass due to improper handling of uri and srv sans

A flaw was found in gnutls. A remote attacker could exploit this vulne ...

ALT-PU-2026-7344: package `gnutls30` update to version 3.6.16-alt11

ALT-PU-2026-7127: package `gnutls30` update to version 3.8.13-alt1

Уязвимость gnutls

Уязвимость gnutls

A flaw was found in gnutls. A remote attacker could exploit this vulnerability by presenting a specially crafted certificate that contains Uniform Resource Identifier (URI) or Service (SRV) Subject Alternative Names (SANs). This could cause the certificate validation process to incorrectly fall back to checking DNS hostnames against the Common Name (CN), potentially allowing the attacker to spoof legitimate services or intercept sensitive information.

ELSA-2026-43575: gnutls security update (MODERATE)

Security update for gnutls

Important: gnutls security update

ELSA-2026-20611: gnutls security update (IMPORTANT)

Security update for gnutls

Security update for gnutls

Important: gnutls security update

Important: gnutls security update

ELSA-2026-50346: gnutls security fix update (IMPORTANT)