VULNERABILITY INTELLIGENCE

CVE-2019-17639

CVSS score5.3 MEDIUM
EPSS probability1.50%
CISA KEVNot currently listed
Published2020-07-15
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Description

In Eclipse OpenJ9 prior to version 0.21 on Power platforms, calling the System.arraycopy method with a length longer than the length of the source or destination array can, in certain specially crafted code patterns, cause the current method to return prematurely with an undefined return value. This allows whatever value happens to be in the return register at that time to be used as if it matches the method's declared return type.

Weakness classification

  • emo@eclipse.org: CWE-843
  • nvd@nist.gov: CWE-843

Primary references