USN-7902-1: CRaC JDK 25 vulnerabilities
Publication date
1 December 2025
Overview
Several security issues were fixed in CRaC JDK 25.
Releases
Packages
- openjdk-25-crac - Open Source Java implementation with Coordinated Restore at Checkpoints
Details
Jinfeng Guo discovered that the Security component of CRaC JDK 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 CRaC JDK 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 CRaC JDK
25 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. (
Jinfeng Guo discovered that the Security component of CRaC JDK 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 CRaC JDK 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 CRaC JDK
25 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
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.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 25.10 questing | openjdk-25-crac-jdk – 25.0.1+8-0ubuntu1~25.10 | ||
| openjdk-25-crac-jdk-headless – 25.0.1+8-0ubuntu1~25.10 | |||
| openjdk-25-crac-jre – 25.0.1+8-0ubuntu1~25.10 | |||
| openjdk-25-crac-jre-headless – 25.0.1+8-0ubuntu1~25.10 | |||
| openjdk-25-crac-jre-zero – 25.0.1+8-0ubuntu1~25.10 | |||
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