In Eclipse OpenJ9 versions up to 0.63.0, the JITServer component is vulnerable to denial of service due to improper boundary checks during protocol message and reply handling. An unauthenticated remote attacker or malicious JITServer can transmit malformed network payloads that cause out-of-bounds heap reads, immediately crashing the JITServer daemon or client JVM process via a segmentation fault (SIGSEGV).
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
References 6
https://github.com/eclipse-openj9/openj9/pull/25011
emo@eclipse.org
https://gitlab.eclipse.org/security/cve-assignment/-/work_items/407
emo@eclipse.org
https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/943
emo@eclipse.org
https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/944
emo@eclipse.org
https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/946
emo@eclipse.org
https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/947
emo@eclipse.org