openjdk team mailing list archive

[Łukasz Zemczak <1771363@xxxxxxxxxxxxxxxxxx>]

Hello Tiago, or anyone else affected,

Accepted ca-certificates-java into bionic-proposed. The package will
build now and be available at https://launchpad.net/ubuntu/+source/ca-
certificates-java/20180516ubuntu1~18.04.1 in a few hours, and then in
the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested and change the tag from
verification-needed-bionic to verification-done-bionic. If it does not
fix the bug for you, please add a comment stating that, and change the
tag to verification-failed-bionic. In either case, without details of
your testing we will not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance!

** Changed in: ca-certificates-java (Ubuntu Bionic)
       Status: Triaged => Fix Committed

** Tags added: verification-needed verification-needed-bionic

-- 
You received this bug notification because you are a member of OpenJDK,
which is subscribed to ca-certificates-java in Ubuntu.
https://bugs.launchpad.net/bugs/1771363

Title:
  ca-certificates-java: convert PKCS12 cacerts keystore to JKS

Status in ca-certificates-java package in Ubuntu:
  Fix Released
Status in ca-certificates-java source package in Bionic:
  Fix Committed
Status in ca-certificates-java package in Debian:
  Fix Released

Bug description:
  [Impact]
  Any user already affected by the issue described in bug 1739631 won't benefit from the fix as that fix only prevents the issue from happening in new installs.

  [Cause]
  Same as described in bug 1739631 and copied here.

  The ca-certificate-java version 20170930 (or earlier) used the default keystore to create /etc/ssl/certs/java/cacerts - if the file already existed its contents were just updated without changing the keystore
  type.

  From openjdk-9 upwards the default keystore type changed from 'jks' to
  'pkcs12' [1] by means of JEP 229 [2]. A JKS keystore can be read
  without supplying a password (or by supplying an empty one) while a
  PKCS12 keystore requires a password to be set.

  Thus a /etc/ssl/certs/java/cacerts created in the pkcs12 format will
  fail to be loaded as, by default, the truststore password is empty -
  in order to avoid that the user must set
  -Djavax.net.ssl.trustStorePassword=<passwd> or define it in /etc/java-
  XX-openjdk/management/management.properties. A JKS keystore will work
  normally, as the certificates in it can be ready when the truststore
  password is empty.

  Ubuntu does *not* set the javax.net.ssl.trustStorePassword by default
  thus any user that got a cacerts generated in JKCS12 won't be able
  to use any secure connections from java.

  
  [Test Case]
  Start on a new bionic install/chroot without openjdk

  1. Install openjdk-11
  $ sudo apt-get install openjdk-11-jdk

  2. Test the keystore with an empty password (optional) and make sure it is a PKCS12
  $ keytool -list -cacerts
  Enter keystore password: <leave empty>
  ***************** WARNING WARNING WARNING *****************
  * The integrity of the information stored in your keystore *
  * has NOT been verified! In order to verify its integrity, *
  * you must provide your keystore password. *
  ***************** WARNING WARNING WARNING *****************
  Keystore type: PKCS12
  Keystore provider: SUN
  Your keystore contains 0 entries

  3. Test with the "changeit" password
  $ keytool -list -cacerts
  Enter keystore password: changeit
  Keystore type: PKCS12
  Keystore provider: SUN
  Your keystore contains 133 entries
  <snipped various certs>

  4. Create the java test file
  $ cat <<EOF >HttpsTester.java
  import java.net.URL;
  import javax.net.ssl.HttpsURLConnection;
  public class HttpsTester {
  public static void main(String[] args) throws java.io.IOException {
  HttpsURLConnection connection = (HttpsURLConnection) new URL("https://www.ubuntu.com";).openConnection();
  System.out.println("Response code: " + connection.getResponseCode());
  System.out.println("It worked!");
  }
  }
  EOF

  5. Compile it
  $ javac HttpsTester.java

  6. Call it
  $ /usr/lib/jvm/java-11-openjdk-amd64/bin/java HttpsTester

  7. Call it again, this time set the store password
  $ /usr/lib/jvm/java-11-openjdk-amd64/bin/java \
    -Djavax.net.ssl.trustStorePassword=changeit HttpsTester
  Response code: 200
  It worked!

  8. Install the newer ca-certificates-java 20180516, it should
  migrate cacerts from PKCS12 to JKS. Check that by running step #2
  again
  $ keytool -list -cacerts
  Enter keystore password: <leave empty>
  ***************** WARNING WARNING WARNING *****************
  * The integrity of the information stored in your keystore *
  * has NOT been verified! In order to verify its integrity, *
  * you must provide your keystore password. *
  ***************** WARNING WARNING WARNING *****************
  Keystore type: JKS
  Keystore provider: SUN
  Your keystore contains 133 entries
  <snipped various certs>

  9. The old keystore should be saved in
  /etc/ssl/certs/java/cacerts.dpkg-old, test it exists:
  $ keytool -list -keystore /etc/ssl/certs/java/cacerts.dpkg-old
  Enter keystore password: <leave empty>
  ***************** WARNING WARNING WARNING *****************
  * The integrity of the information stored in your keystore *
  * has NOT been verified! In order to verify its integrity, *
  * you must provide your keystore password. *
  ***************** WARNING WARNING WARNING *****************
  Keystore type: PKCS12
  Keystore provider: SUN
  Your keystore contains 0 entries

  
  [Regression Potential]
  * If a user has manually set his own JKCS12 cacerts and didn't update
  /etc/default/cacerts to set "cacerts_updates=no" (from the default
  of "cacerts_updates=yes") then his custom cacerts will be converted and overwritten. Still, a copy from the previous cacert is kept at
  /etc/ssl/certs/java/cacerts.dpkg-old.

  [Other Info]
  The cacerts keystore fix is related to 2 bugs:
  1) bug #1739631, fixed by ca-certificates-java-20180413, which changed the default keystore type generated by ca-certificates-java to JKS

  [References]
  [1] The default keystore is defined by the keystore.type in the
  /etc/java-XX-openjdk/security/java.security file.
  http://hg.openjdk.java.net/jdk-updates/jdk9u/jdk/annotate/46bd35a597eb/src/java.base/share/conf/security/java.security#l186

  [2] JEP 229: Create PKCS12 Keystores by Default
  http://openjdk.java.net/jeps/229

  [Original bug description]
  The fix for Debian #894979 and Ubuntu bug #1739631 which updated ca-certificates-java to generate
  JKS keystores by default - instead OpenJDK's 9+ default of PKCS12 - only fixes new installs.

  Any user already affected by that issue won't benefit from the fix, as the file /etc/ssl/certs/java/cacerts is at most updated by the jks-keystore hook. The only way to actually change it from the PKCS12 to the JKS format is to remove the cacerts file and then calling
  'update-ca-certificates -f' - which is also accomplished by removing and then reinstalling the ca-certificates-java package.

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