This security advisory describes one high risk vulnerability.
CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]
Exploit availability: NoDescription
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when the virtual machine or JNI natives are converting from UTF-8 characters to platform encoding. A remote unauthenticated attacker can trigger a stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.Mitigation
Install updates from vendor's website.Vulnerable software versions
OpenJ9: 0.20.0, 0.20.0-m1, 0.20.0-m2, 0.21.0, 0.21.0-m1, 0.21.0-m2, 0.22.0, 0.22.0-m1, 0.22.0-m2, 0.23.0, 0.23.0-m1, 0.23.0-m2CPE
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.