Уязвимость сетевого протокола ssh, связанная с раскрытием информации, позволяющая нарушителю получить доступ к конфиденциальным данным

Уязвимость средства криптографической защиты OpenSSH, позволяющая нарушителю вызвать отказ в обслуживании

Уязвимость функции do_setup_env (session.c) службы sshd средства криптографической защиты OpenSSH, позволяющая нарушителю повысить свои привилегии

The do_setup_env function in session.c in sshd in OpenSSH through 7.2p2, when the UseLogin feature is enabled and PAM is configured to read .pam_environment files in user home directories, allows local users to gain privileges by triggering a crafted environment for the /bin/login program, as demonstrated by an LD_PRELOAD environment variable.

sshd in OpenSSH before 7.3, when SHA256 or SHA512 are used for user password hashing, uses BLOWFISH hashing on a static password when the username does not exist, which allows remote attackers to enumerate users by leveraging the timing difference between responses when a large password is provided.

The kex_input_kexinit function in kex.c in OpenSSH 6.x and 7.x through 7.3 allows remote attackers to cause a denial of service (memory consumption) by sending many duplicate KEXINIT requests. NOTE: a third party reports that "OpenSSH upstream does not consider this as a security issue."