SB20200716142 - Type confusion in Eclipse OpenJ9



SB20200716142 - Type confusion in Eclipse OpenJ9

Published: July 16, 2020 Updated: August 11, 2020

Security Bulletin ID SB20200716142
CSH Severity
High
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Type Confusion (CVE-ID: CVE-2019-17639)

CWE-ID: CWE-843 - Type confusion

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber


The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a type confusion error on Power platforms. A remote attacker can call the System.arraycopy method with a length longer than the length of the source or destination array and cause the current method to return prematurely with an undefined return value. As a result, a remote attacker can influence application flow and execute arbitrary code on the target system.


Remediation

Install update from vendor's website.