CVE-2018-15769 Denial of service in n/a

High 7.5 Published 16 Nov 2018 Updated 5 Aug 2024

A malicious TLS server can cause a Denial of Service on clients using specific Diffie-Hellman cipher suites by sending a large prime value.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2018-15769?

CVE-2018-15769 is a high-severity denial of service vulnerability in Oracle Application Testing Suite, published on 16 Nov 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

RSA BSAFE Micro Edition Suite versions prior to 4.0.11 (in 4.0.x series) and versions prior to 4.1.6.2 (in 4.1.x series) contain a key management error issue. A malicious TLS server could potentially cause a Denial Of Service (DoS) on TLS clients during the handshake when a very large prime value is sent to the TLS client, and an Ephemeral or Anonymous Diffie-Hellman cipher suite (DHE or ADH) is used.

Which versions are affected by CVE-2018-15769?

It affects 12 products.

Products include Dell Bsafe, Oracle Application Testing Suite, Oracle Communications Analytics, Oracle Communications Ip Service Activator, Oracle Core Rdbms, Oracle Enterprise Manager Ops Center and 6 more.

How do I fix CVE-2018-15769?

No fix has been published for CVE-2018-15769 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2018-15769 being exploited?

There is no known exploitation of CVE-2018-15769 in the wild and no public exploit code.

All Oracle Application Testing Suite vulnerabilities

Sources

Also known as GHSA-9jr7-f5xc-87jm.