Stack-Based Buffer Overflow in Eclipse OpenJ9 Virtual Machine
CVE-2020-27221

9.8CRITICAL

Key Information:

Vendor

The Eclipse Foundation

Status
Eclipse Openj9
Vendor
CVE Published:
21 January 2021

What is CVE-2020-27221?

In Eclipse OpenJ9, a stack-based buffer overflow vulnerability exists that could occur when the virtual machine or Java Native Interface (JNI) natives attempt to convert UTF-8 characters to platform encoding. This flaw can be exploited in certain conditions, potentially leading to unpredictable behavior or system instability. It is critical for users to ensure that they are using up-to-date versions to mitigate this risk.

Affected Version(s)

Eclipse OpenJ9 <= 0.23

References

https://bugs.eclipse.org/bugs/show_bug.cgi?id=569763
x_refsource_CONFIRM

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.