Описание
During key agreement in a TLS handshake using a DH(E) based ciphersuite a malicious server can send a very large prime value to the client. This will cause the client to spend an unreasonably long period of time generating a key for this prime resulting in a hang until the client has finished. This could be exploited in a Denial Of Service attack. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2-1.0.2o).
Затронутые пакеты
| Платформа | Пакет | Состояние | Рекомендация | Релиз |
|---|---|---|---|---|
| Red Hat Enterprise Linux 5 | openssl | Will not fix | ||
| Red Hat Enterprise Linux 5 | openssl097a | Will not fix | ||
| Red Hat Enterprise Linux 6 | openssl | Will not fix | ||
| Red Hat Enterprise Linux 6 | openssl098e | Will not fix | ||
| Red Hat Enterprise Linux 7 | openssl098e | Will not fix | ||
| Red Hat Enterprise Linux 7 | OVMF | Will not fix | ||
| Red Hat Enterprise Linux 8 | openssl | Not affected | ||
| Red Hat JBoss Enterprise Application Platform 5 | openssl | Out of support scope | ||
| Red Hat JBoss Enterprise Application Platform 6 | openssl | Will not fix | ||
| Red Hat JBoss Enterprise Web Server 2 | openssl | Will not fix |
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Дополнительная информация
Статус:
4.3 Medium
CVSS3
Связанные уязвимости
During key agreement in a TLS handshake using a DH(E) based ciphersuite a malicious server can send a very large prime value to the client. This will cause the client to spend an unreasonably long period of time generating a key for this prime resulting in a hang until the client has finished. This could be exploited in a Denial Of Service attack. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2-1.0.2o).
During key agreement in a TLS handshake using a DH(E) based ciphersuite a malicious server can send a very large prime value to the client. This will cause the client to spend an unreasonably long period of time generating a key for this prime resulting in a hang until the client has finished. This could be exploited in a Denial Of Service attack. Fixed in OpenSSL 1.1.0i-dev (Affected 1.1.0-1.1.0h). Fixed in OpenSSL 1.0.2p-dev (Affected 1.0.2-1.0.2o).
During key agreement in a TLS handshake using a DH(E) based ciphersuit ...
4.3 Medium
CVSS3