Home / mailings [USN-7884-1] OpenJDK 25 vulnerabilities
Posted on 25 November 2025
Ubuntu Security==========================================================================Ubuntu Security Notice USN-7884-1
November 24, 2025
openjdk-25 vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 25.10
- Ubuntu 25.04
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
Summary:
Several security issues were fixed in OpenJDK 25.
Software Description:
- openjdk-25: Open Source Java implementation
Details:
Jinfeng Guo discovered that the Security component of OpenJDK 25 did not
correctly handle certain representations of encoded strings. An
unauthenticated remote attacker could possibly use this issue to modify
files or leak sensitive information. (CVE-2025-53057)
Darius Bohni discovered that the JAXP component of OpenJDK 25 was
vulnerable to a XML External Entity (XEE) attack. An unauthenticated remote
attacker could possibly use this issue to modify files or leak sensitive
information. (CVE-2025-53066)
Yakov Shafranovich discovered that the Libraries component of OpenJDK 21
contained an issue where certain Strings built with StringBuilder returned
an incorrect result for String.equals() checks. An unauthenticated remote
attacker could possibly use this issue to update, insert, or delete
accessible data. (CVE-2025-61748)
In addition to security fixes, the updated packages contain bug fixes, new
features, and possibly incompatible changes.
Please see the following for more information:
https://openjdk.org/groups/vulnerability/advisories/2025-10-21
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 25.10
openjdk-25-jdk 25.0.1+8-1~25.10
openjdk-25-jdk-headless 25.0.1+8-1~25.10
openjdk-25-jre 25.0.1+8-1~25.10
openjdk-25-jre-headless 25.0.1+8-1~25.10
openjdk-25-jre-zero 25.0.1+8-1~25.10
Ubuntu 25.04
openjdk-25-jdk 25.0.1+8-1~25.04
openjdk-25-jdk-headless 25.0.1+8-1~25.04
openjdk-25-jre 25.0.1+8-1~25.04
openjdk-25-jre-headless 25.0.1+8-1~25.04
openjdk-25-jre-zero 25.0.1+8-1~25.04
Ubuntu 24.04 LTS
openjdk-25-jdk 25.0.1+8-1~24.04
openjdk-25-jdk-headless 25.0.1+8-1~24.04
openjdk-25-jre 25.0.1+8-1~24.04
openjdk-25-jre-headless 25.0.1+8-1~24.04
openjdk-25-jre-zero 25.0.1+8-1~24.04
Ubuntu 22.04 LTS
openjdk-25-jdk 25.0.1+8-1~22.04
openjdk-25-jdk-headless 25.0.1+8-1~22.04
openjdk-25-jre 25.0.1+8-1~22.04
openjdk-25-jre-headless 25.0.1+8-1~22.04
openjdk-25-jre-zero 25.0.1+8-1~22.04
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-7884-1
CVE-2025-53057, CVE-2025-53066, CVE-2025-61748
Package Information:
https://launchpad.net/ubuntu/+source/openjdk-25/25.0.1+8-1~25.10
https://launchpad.net/ubuntu/+source/openjdk-25/25.0.1+8-1~25.04
https://launchpad.net/ubuntu/+source/openjdk-25/25.0.1+8-1~24.04
https://launchpad.net/ubuntu/+source/openjdk-25/25.0.1+8-1~22.04
--===============5740873890965605131==Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: OpenPGP digital signature
