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Ubuntu 25.04 / 25.10 : CRaC JDK 21 vulnerabilities (USN-7901-1)

high Nessus Plugin ID 276992

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Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 25.04 / 25.10 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-7901-1 advisory.

 Jinfeng Guo discovered that the Security component of CRaC JDK 21 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 21 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 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

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://ubuntu.com/security/notices/USN-7901-1

Plugin Details

Severity: High

ID: 276992

File Name: ubuntu_USN-7901-1.nasl

Version: 1.1

Type: local

Agent: unix

Published: 12/2/2025

Updated: 12/2/2025

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N

CVSS Score Source: CVE-2025-53066

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:canonical:ubuntu_linux:openjdk-21-crac-jre, p-cpe:/a:canonical:ubuntu_linux:openjdk-21-crac-source, p-cpe:/a:canonical:ubuntu_linux:openjdk-21-crac-jre-zero, p-cpe:/a:canonical:ubuntu_linux:openjdk-21-crac-demo, p-cpe:/a:canonical:ubuntu_linux:openjdk-21-crac-jre-headless, cpe:/o:canonical:ubuntu_linux:25.10, p-cpe:/a:canonical:ubuntu_linux:openjdk-21-crac-testsupport, cpe:/o:canonical:ubuntu_linux:25.04, p-cpe:/a:canonical:ubuntu_linux:openjdk-21-crac-jdk-headless, p-cpe:/a:canonical:ubuntu_linux:openjdk-21-crac-jdk

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 12/1/2025

Vulnerability Publication Date: 10/21/2025

Reference Information

CVE: CVE-2025-53057, CVE-2025-53066, CVE-2025-61748

USN: 7901-1