java

JDK 23.0.1 Release Notes

Java™ SE Development Kit 23.0.1 (JDK 23.0.1)

Release date: October 15, 2024

The full version string for this update release is 23.0.1+11 (where "+" means "build"). The version number is 23.0.1.

 

IANA TZ Data 2024a

For more information, refer to Timezone Data Versions in the JRE Software.

 

Security Baselines

The security baselines for the Java Runtime at the time of the release of JDK 23.0.1 are specified in the following table:

Java Family Version Security Baseline (Full Version String)
2323.0.1+11
2121.0.5+9
1717.0.13+10
1111.0.25+9
81.8.0_431-b10

 

Keeping the JDK up to Date

Oracle recommends that the JDK is updated with each Critical Patch Update. In order to determine if a release is the latest, the Security Baseline page can be used to determine which is the latest version for each release family.

Critical patch updates, which contain security vulnerability fixes, are announced one year in advance on Critical Patch Updates, Security Alerts and Bulletins. It is not recommended that this JDK (version 23.0.1) be used after the next critical patch update scheduled for January 21, 2025.

Java Management Service, available to all users, can help you find vulnerable Java versions in your systems. Java SE Subscribers and customers running in Oracle Cloud can use Java Management Service to update Java Runtimes and to do further security reviews like identifying potentially vulnerable third party libraries used by your Java programs. Existing Java Management Service user click here to log in to your dashboard. The Java Management Service Documentation provides a list of features available to everyone and those available only to customers. Learn more about using Java Management Service to monitor and secure your Java Installations.

 

Notable Issues Resolved

install/install
 JDK RPM Upgrade Leaves Orphan Alternatives Entry (JDK-8336107 (not public))

Fixed the issue with entries in the "java" and "javac" groups not being properly managed during an RPM upgrade.

Upgrading from an older Java RPM installed into a shared directory (/usr/lib/jvm/jdk-${FEATURE}-oracle-${ARCH}) to a Java RPM installing into a version-specific directory (/usr/lib/jvm/jdk-${VERSION}-oracle-${ARCH}), results in the older Java entries in the "java" and "javac" groups not being deleted.

The issue does not manifest until the new Java is uninstalled. When it is uninstalled and Java from the lower release is installed, running Java commands like java or keytool without the full path specified will result in the "command not found" error. For example, install 21.0.3; upgrade it to 21.0.4; uninstall 21.0.4; install any Java update of 17 or 11 or 8 release; run "java" from the command line. The command will fail with the "command not found" error.

Manually delete orphan Java entries in the "java" and "javac" groups to workaround the issue.

 

Other Notes

core-libs/java.net
 New Default Limits in the JDK HTTP Implementations (JDK-8328286 (not public))

New Default limits have been added to HTTP in the JDK.

The JDK built-in implementation of the legacy URL protocol handler for HTTP, HttpURLConnection, and the new HttpClient, in the module java.net.http, now have a default limit on the maximum response headers size they will accept from a remote party. The limit is set by default at 384kB (393216 bytes) and is computed as the cumulative size of all header names and header values plus an overhead of 32 bytes per header name value pair.

The default value of the limit can be changed by specifying a positive value with the jdk.http.maxHeaderSize system property on the command line, or in the appropriate conf.properties or net.properties file. A negative or zero value is interpreted as no limit. If the limit is exceeded, the request will fail with a protocol exception.

The JDK built-in implementation of the com.sun.net.httpserver.HttpServer (jdk.httpserver) implements a similar limit for the maximum request header size the server is prepared to accept. The HttpServer limit can be changed by specifying a positive value with the sun.net.httpserver.maxReqHeaderSize system property on the command line. A negative or zero value is interpreted as no limit. The limit is set by default at 384kB (393216 bytes) and the size is computed in the same way as explained above. If the limit is exceeded, the connection is closed.

In addition, the JDK built-in implementation of the new java.net.http.HttpClient enforces two additional limits:

The system property jdk.httpclient.maxNonFinalResponses can be specified with a positive value on the java command line, or in the conf.properties or net.properties file, to control how many interim responses the client will accept before receiving a final response. An interim response is considered informational and is a response whose status is in the range [100, 199]. These responses are typically either handled internally or simply discarded by the implementation. The default limit is now set at a maximum of 8 interim responses before receiving the final response. A negative or zero value is interpreted as no limit. If the limit is exceeded, the request will fail with a protocol exception.

The system property jdk.httpclient.maxLiteralWithIndexing can be specified with a positive value on the java command line, or in the conf.properties or net.properties file, to control how many additions a server may request a client to make to the HPack dynamic table when decoding a set of headers. The default maximum value is now set to 512. A negative or zero value is interpreted as no limit. If the limit is exceeded, the request will fail with a protocol exception.

security-libs/java.security
 Added SSL.com TLS Root CA Certificates issued in 2022 (JDK-8341057)

The following root certificates have been added to the cacerts truststore:

+ SSL.com

  + ssltlsrootecc2022
    DN: CN=SSL.com TLS ECC Root CA 2022, O=SSL Corporation, C=US

+ SSL.com
  + ssltlsrootrsa2022
    DN: CN=SSL.com TLS RSA Root CA 2022, O=SSL Corporation, C=US

security-libs/javax.net.ssl
 Distrust TLS Server Certificates Anchored by Entrust Root Certificates and Issued After Nov 11, 2024 (JDK-8337664)

The JDK will stop trusting TLS server certificates issued after November 11, 2024 and anchored by Entrust root certificates, in line with similar plans recently announced by Google and Mozilla. The list of affected certificates includes certificates branded as AffirmTrust, which are managed by Entrust.

TLS server certificates issued on or before November 11, 2024 will continue to be trusted until they expire. Certificates issued after that date, and anchored by any of the Certificate Authorities in the table below, will be rejected.

The restrictions will be enforced in the JDK implementation (the SunJSSE Provider) of the Java Secure Socket Extension (JSSE) API. A TLS session will not be negotiated if the server's certificate chain is anchored by any of the Certificate Authorities in the table below and the certificate has been issued after November 11, 2024.

An application will receive an Exception with a message indicating the trust anchor is not trusted, for example:

TLS server certificate issued after 2024-11-11 and anchored by a distrusted legacy Entrust root CA: CN=Entrust.net Certification Authority (2048),

OU=(c) 1999 Entrust.net Limited, OU=www.entrust.net/CPS_2048 incorp. by ref. (limits liab.), O=Entrust.net

If necessary, and at your own risk, you can work around the restrictions by removing "ENTRUST_TLS" from the jdk.security.caDistrustPolicies security property in the java.security configuration file.

The restrictions are imposed on the following Entrust Root certificates included in the JDK:

Root Certificates distrusted after 2024-11-11
Distinguished Name SHA-256 Fingerprint
CN=Entrust Root Certification Authority, OU=(c) 2006 Entrust, Inc., OU=www.entrust.net/CPS is incorporated by reference, O=Entrust, Inc., C=US

73:C1:76:43:4F:1B:C6:D5:AD:F4:5B:0E:76:E7:27:28:7C:8D:E5:76:16:C1:E6:E6:14:1A:2B:2C:BC:7D:8E:4C

CN=Entrust Root Certification Authority - EC1, OU=(c) 2012 Entrust, Inc. - for authorized use only, OU=See www.entrust.net/legal-terms, O=Entrust, Inc., C=US

02:ED:0E:B2:8C:14:DA:45:16:5C:56:67:91:70:0D:64:51:D7:FB:56:F0:B2:AB:1D:3B:8E:B0:70:E5:6E:DF:F5

CN=Entrust Root Certification Authority - G2, OU=(c) 2009 Entrust, Inc. - for authorized use only, OU=See www.entrust.net/legal-terms, O=Entrust, Inc., C=US

43:DF:57:74:B0:3E:7F:EF:5F:E4:0D:93:1A:7B:ED:F1:BB:2E:6B:42:73:8C:4E:6D:38:41:10:3D:3A:A7:F3:39

CN=Entrust Root Certification Authority - G4, OU=(c) 2015 Entrust, Inc. - for authorized use only, OU=See www.entrust.net/legal-terms, O=Entrust, Inc., C=US

DB:35:17:D1:F6:73:2A:2D:5A:B9:7C:53:3E:C7:07:79:EE:32:70:A6:2F:B4:AC:42:38:37:24:60:E6:F0:1E:88

CN=Entrust.net Certification Authority (2048), OU=(c) 1999 Entrust.net Limited, OU=www.entrust.net/CPS_2048 incorp. by ref. (limits liab.), O=Entrust.net

6D:C4:71:72:E0:1C:BC:B0:BF:62:58:0D:89:5F:E2:B8:AC:9A:D4:F8:73:80:1E:0C:10:B9:C8:37:D2:1E:B1:77

CN=AffirmTrust Commercial, O=AffirmTrust, C=US

03:76:AB:1D:54:C5:F9:80:3C:E4:B2:E2:01:A0:EE:7E:EF:7B:57:B6:36:E8:A9:3C:9B:8D:48:60:C9:6F:5F:A7

CN=AffirmTrust Networking, O=AffirmTrust, C=US

0A:81:EC:5A:92:97:77:F1:45:90:4A:F3:8D:5D:50:9F:66:B5:E2:C5:8F:CD:B5:31:05:8B:0E:17:F3:F0B4:1B

CN=AffirmTrust Premium, O=AffirmTrust, C=US

70:A7:3F:7F:37:6B:60:07:42:48:90:45:34:B1:14:82:D5:BF:0E:69:8E:CC:49:8D:F5:25:77:EB:F2:E9:3B:9A

CN=AffirmTrust Premium ECC, O=AffirmTrust, C=US

BD:71:FD:F6:DA:97:E4:CF:62:D1:64:7A:DD:25:81:B0:7D:79:AD:F8:39:7E:B4:EC:BA:9C:5E:84:88:82:14:23


You can also use the keytool utility from the JDK to print out details of the certificate chain, as follows:

keytool -v -list -alias <your_server_alias> -keystore <your_keystore_filename>

If any of the certificates in the chain are issued by one of the root CAs in the table above are listed in the output you will need to update the certificate or contact the organization that manages the server.

core-libs/java.text
 MessageFormat ArgumentIndex Now Has a Limit (JDK-8331446 (not public))

In the JDK, java.text.MessageFormat now has an implementation limit for the ArgumentIndex pattern element. The hard limit for the value is 10,000.

If an ArgumentIndex value is equal to or exceeds the upper limit, an IllegalArgumentException will now be thrown by

  • MessageFormats constructors
  • applyPattern(String pattern) instance method
  • format(String pattern, Object... arguments) static method

De-serializing a MessageFormat object with an ArgumentIndex value at or over the limit will throw an InvalidObjectException.

 

Bug Fixes

This release also contains fixes for security vulnerabilities described in the Oracle Critical Patch Update.

Issues fixed in 23.0.1:
# JBS Component/Subcomponent Summary
1JDK-6967482client-libs/javax.swingTAB-key does not work in JTables after selecting details-view in JFileChooser
2JDK-8338696core-libs/java.nio(fs) BasicFileAttributes.creationTime() falls back to epoch if birth time is unavailable (Linux)
3JDK-8341059security-libs/javax.net.sslChange Entrust TLS distrust date to November 12, 2024