Ubuntu update for openjdk-lts

1) Improper input validation

EUVDB-ID: #VU103159

Risk: Medium

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2025-21502

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to read and manipulate data.

The vulnerability exists due to improper input validation within the Hotspot component in Oracle GraalVM Enterprise Edition. A remote non-authenticated attacker can exploit this vulnerability to read and manipulate data.

Mitigation

Update the affected package openjdk-lts to the latest version.

Vulnerable software versions

Ubuntu: 18.04 - 24.10

openjdk-11-jre-zero (Ubuntu package): before Ubuntu Pro

openjdk-11-jre-headless (Ubuntu package): before Ubuntu Pro

openjdk-11-jre (Ubuntu package): before Ubuntu Pro

openjdk-11-jdk-headless (Ubuntu package): before Ubuntu Pro

openjdk-11-jdk (Ubuntu package): before Ubuntu Pro

CPE2.3

• cpe:2.3:o:canonical:ubuntu:18.04:*:*:*:*:*:*:*
• cpe:2.3:o:canonical:ubuntu:20.04:*:*:*:*:*:*:*
• cpe:2.3:o:canonical:ubuntu:22.04:*:*:*:*:*:*:*
• cpe:2.3:o:canonical:ubuntu:24.04:*:*:*:*:*:*:*
• cpe:2.3:o:canonical:ubuntu:24.10:*:*:*:*:*:*:*
• cpe:2.3:a:canonical:openjdk-11-jre-zero_ubuntu_package:*:*:*:*:*:ubuntu:*:*
• cpe:2.3:a:canonical:openjdk-11-jre-headless_ubuntu_package:*:*:*:*:*:ubuntu:*:*
• cpe:2.3:a:canonical:openjdk-11-jre_ubuntu_package:*:*:*:*:*:ubuntu:*:*
• cpe:2.3:a:canonical:openjdk-11-jdk-headless_ubuntu_package:*:*:*:*:*:ubuntu:*:*
• cpe:2.3:a:canonical:openjdk-11-jdk_ubuntu_package:*:*:*:*:*:ubuntu:*:*

External links

https://ubuntu.com/security/notices/USN-7252-1

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.