SB2018081005 - Amazon Linux AMI update for tomcat7, tomcat80

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Main Vulnerability Database SB2018081005

SB2018081005 - Amazon Linux AMI update for tomcat7, tomcat80

Published: August 10, 2018

Security Bulletin ID SB2018081005
Severity
Low
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 33% Low 67%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 secuirty vulnerabilities.


1) Security restrictions bypass (CVE-ID: CVE-2018-8034)

The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The vulnerability exists due to host name verification when using TLS with the WebSocket client was missing. A remote unauthenticated attacker can bypass security restrictions when using TLS.


2) Infinite loop (CVE-ID: CVE-2018-1336)

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The vulnerability exists due to improper handing of overflow in the UTF-8 decoder with supplementary characters. A remote attacker can send trigger an infinite loop in the decoder and cause the service to crash.


3) Information disclosure (CVE-ID: CVE-2018-8014)

The vulnerability allows a remote attacker to obtain potentially sensitive information on the target system.
The weakness exists due to the defaults settings for the CORS filter are insecure and enable supportsCredentials for all origins. It is expected that users of the CORS filter will have configured it appropriately for their environment rather than using it in the default configuration. A remote attacker can access important data.


Remediation

Install update from vendor's website.

References