SB2020061845 - Multiple vulnerabilities in AMQ Streams 1.5



SB2020061845 - Multiple vulnerabilities in AMQ Streams 1.5

Published: June 18, 2020 Updated: April 24, 2025

Security Bulletin ID SB2020061845
Severity
Medium
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 50% Low 50%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 secuirty vulnerabilities.


1) Incorrect default permissions (CVE-ID: CVE-2020-1945)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to Apache Ant is using a default temporary directory identified by the Java system property java.io.tmpdir for several tasks and may thus leak sensitive information. The fixcrlf and replaceregexp tasks also copy files from the temporary directory back into the build tree allowing an attacker to inject modified source files into the build process. A local user with access to the system can view contents of files and directories or modify them.


2) Resource exhaustion (CVE-ID: CVE-2020-11612)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources within ZlibDecoders in Netty while decoding a ZlibEncoded byte stream. A remote attacker can trigger resource exhaustion by passing an overly large ZlibEncoded byte stream to the Netty server, forcing the server to allocate all of its free memory to a single decoder.


Remediation

Install update from vendor's website.