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Ubuntu Security Notice USN-6834-1
June 13, 2024

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

- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

H2 could be made to allow arbitrary code execution.

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 18.04 LTS
   libh2-java                      1.4.196-2ubuntu0.1~esm1
                                   Available with Ubuntu Pro

Ubuntu 16.04 LTS
   libh2-java                      1.4.191-1ubuntu0.1~esm1
                                   Available with Ubuntu Pro

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

References:
https://ubuntu.com/security/notices/USN-6834-1 

   CVE-2021-42392, CVE-2022-23221