SB2018082313 - Red Hat update for Node.js
Published: August 23, 2018
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 2 secuirty vulnerabilities.
1) Improper input validation (CVE-ID: CVE-2018-0732)
The vulnerability allows a remote attacker to cause DoS condition on the target system.
The vulnerability exists due to improper handling of large prime values by the affected software during key agreement operations in a Transport Layer Security (TLS) handshake using an Ephemeral Diffie-Hellman (DHE) based cipher suite. A remote attacker can send a large prime value from a malicious OpenSSL server to a targeted OpenSSL client and cause the client to stop responding while generating a key for the prime value.
2) Out-of-bounds write (CVE-ID: CVE-2018-12115)
The vulnerability allows a local attacker to gain elevated privileges on the target system.
The vulnerability exists due to an out-of-bounds write condition in the Buffer component when used with UCS-2 encoding. A local attacker can cause a targeted system to stop functioning or execute arbitrary code with elevated privileges.
Remediation
Install update from vendor's website.