A H2 security update has been released for Ubuntu Linux 20.04 LTS and 21.10.

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Ubuntu Security Notice USN-5365-1
April 05, 2022

h2database vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 21.10
- Ubuntu 20.04 LTS

Summary:

Several security issues were fixed in H2.

Software Description:
- h2database: H2 Database Engine

Details:

It was discovered that H2 was vulnerable to deserialization of
untrusted data. An attacker could possibly use this issue to
execute arbitrary code. (CVE-2021-42392)

It was discovered that H2 incorrectly handled some specially
crafted connection URLs. An attacker could possibly use this
issue to execute arbitrary code. (CVE-2022-23221)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 21.10:
libh2-java 1.4.197-4+deb10u1build0.21.10.1

Ubuntu 20.04 LTS:
libh2-java 1.4.197-4+deb10u1build0.20.04.1

In general, a standard system update will make all the necessary changes.

References:
https://ubuntu.com/security/notices/USN-5365-1
CVE-2021-42392, CVE-2022-23221

Package Information:
https://launchpad.net/ubuntu/+source/h2database/1.4.197-4+deb10u1build0.21.10.1
https://launchpad.net/ubuntu/+source/h2database/1.4.197-4+deb10u1build0.20.04.1