Type confusion in Eclipse OpenJ9

1) Type Confusion

EUVDB-ID: #VU44142

Risk: High

CVSSv4.0: 7.2 [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]

CVE-ID: CVE-2019-17639

CWE-ID: CWE-843 - Type confusion

Exploit availability: No

Description

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.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

OpenJ9: 0.0 - 0.21.0-m2

CPE2.3

• cpe:2.3:a:eclipse:openj9:0.0:*:*:*:*:*:*:*
• cpe:2.3:a:eclipse:openj9:0.0M1:*:*:*:*:*:*:*
• cpe:2.3:a:eclipse:openj9:0.0:RC2:*:*:*:*:*:*

External links

https://bugs.eclipse.org/bugs/show_bug.cgi?id=563998

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.