CVE Watch8 de out. de 2026

CVE-2018-0732

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.

CVSS

7.5

Alta

EPSS

47.0%

p99

KEV

—

Exploit Today

0-100

Publicado: 12 de jun. de 2018 · Última mod.: 8 de out. de 2026 · CWE-320

EPSS · 30d

47.0%EPSS · 30 dias48.8%

2026-10-112026-11-08

Descrição técnica

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).

Referências oficiais

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