==========================================================================
Ubuntu Security Notice USN-7674-1
July 28, 2025

openjdk-lts vulnerabilities
==========================================================================

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

- Ubuntu 25.04
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

Several security issues were fixed in OpenJDK 11.

Software Description:
- openjdk-lts: Open Source Java implementation

Details:

It was discovered that the 2D component of OpenJDK 11 did not properly
manage memory under certain circumstances. An attacker could possibly
use this issue to cause a denial of service or execute arbitrary code.
(CVE-2025-30749, CVE-2025-50106)

VMashroor Hasan Bhuiyan discovered that the JSSE component of OpenJDK 11
did not properly manage TLS 1.3 handshakes under certain circumstances.
An attacker could possibly use this issue to obtain sensitive
information. (CVE-2025-30754)

Martin van Wingerden and Violeta Georgieva of Broadcom discovered
that the Networking component of OpenJDK 11 did not properly
manage network connections under certain circumstances. An attacker
could possibly use this issue to obtain sensitive information.
(CVE-2025-50059)

It was discovered that the Scripting component of OpenJDK 11 did not
properly manage properties under certain circumstances. An attacker
could possibly use this issue to cause a denial of service, execute
arbitrary code or bypass Java sandbox restrictions. (CVE-2025-30761)

In addition to security fixes, the updated packages contain bug fixes,
new features, and possibly incompatible changes.

Please see the following link for more information:
https://openjdk.org/groups/vulnerability/advisories/2025-07-15

Update instructions:

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

Ubuntu 25.04
  openjdk-11-jdk                  11.0.28+6-1ubuntu1~25.04.1
  openjdk-11-jdk-headless         11.0.28+6-1ubuntu1~25.04.1
  openjdk-11-jre                  11.0.28+6-1ubuntu1~25.04.1
  openjdk-11-jre-headless         11.0.28+6-1ubuntu1~25.04.1
  openjdk-11-jre-zero             11.0.28+6-1ubuntu1~25.04.1

Ubuntu 24.04 LTS
  openjdk-11-jdk                  11.0.28+6-1ubuntu1~24.04.1
                                  Available with Ubuntu Pro
  openjdk-11-jdk-headless         11.0.28+6-1ubuntu1~24.04.1
                                  Available with Ubuntu Pro
  openjdk-11-jre                  11.0.28+6-1ubuntu1~24.04.1
                                  Available with Ubuntu Pro
  openjdk-11-jre-headless         11.0.28+6-1ubuntu1~24.04.1
                                  Available with Ubuntu Pro
  openjdk-11-jre-zero             11.0.28+6-1ubuntu1~24.04.1
                                  Available with Ubuntu Pro

Ubuntu 22.04 LTS
  openjdk-11-jdk                  11.0.28+6-1ubuntu1~22.04.1
  openjdk-11-jdk-headless         11.0.28+6-1ubuntu1~22.04.1
  openjdk-11-jre                  11.0.28+6-1ubuntu1~22.04.1
  openjdk-11-jre-headless         11.0.28+6-1ubuntu1~22.04.1
  openjdk-11-jre-zero             11.0.28+6-1ubuntu1~22.04.1

Ubuntu 20.04 LTS
  openjdk-11-jdk                  11.0.28+6-1ubuntu1~20.04.1
                                  Available with Ubuntu Pro
  openjdk-11-jdk-headless         11.0.28+6-1ubuntu1~20.04.1
                                  Available with Ubuntu Pro
  openjdk-11-jre                  11.0.28+6-1ubuntu1~20.04.1
                                  Available with Ubuntu Pro
  openjdk-11-jre-headless         11.0.28+6-1ubuntu1~20.04.1
                                  Available with Ubuntu Pro
  openjdk-11-jre-zero             11.0.28+6-1ubuntu1~20.04.1
                                  Available with Ubuntu Pro

Ubuntu 18.04 LTS
  openjdk-11-jdk                  11.0.28+6-1ubuntu1~18.04.1
                                  Available with Ubuntu Pro
  openjdk-11-jdk-headless         11.0.28+6-1ubuntu1~18.04.1
                                  Available with Ubuntu Pro
  openjdk-11-jre                  11.0.28+6-1ubuntu1~18.04.1
                                  Available with Ubuntu Pro
  openjdk-11-jre-headless         11.0.28+6-1ubuntu1~18.04.1
                                  Available with Ubuntu Pro
  openjdk-11-jre-zero             11.0.28+6-1ubuntu1~18.04.1
                                  Available with Ubuntu Pro

This update uses a new upstream release, which includes additional bug
fixes. After a standard system update you need to restart Java
applications to make all the necessary changes.

References:
  https://ubuntu.com/security/notices/USN-7674-1
  CVE-2025-30749, CVE-2025-30754, CVE-2025-30761, CVE-2025-50059,
  CVE-2025-50106

Package Information:
  https://launchpad.net/ubuntu/+source/openjdk-lts/11.0.28+6-1ubuntu1~25.04.1
  https://launchpad.net/ubuntu/+source/openjdk-lts/11.0.28+6-1ubuntu1~22.04.1