IBM Support

IV49906: DHKEYAGREEMENT NEED STRIP LEADING ZEROS FOR TLSPREMASTERSECRET

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APAR status

  • Closed as program error.

Error description

  • Error Message: 1 out 256 SSL/TLS handshakes with DH/DHE cipher
    suites to fail (when the leading byte happens, by chance, to be
    zero).
    .
    Stack Trace: N/A
    .
    N/A
    

Local fix

  • Disable DH cipher suites.
    

Problem summary

  • There is no check for leading zeros when generating keys to be
    used for pre_master_secret.
    

Problem conclusion

  • This defect will be fixed in:
    7.0.0 SR6
    6.0.1 SR7
    6.0.0 SR15
    .
    Avoid using keys that having leading zeros as pre_master_secret.
    The associated Austin CMVC defect is 113950.
    The associated Hursley CMVC defect is 200028.
    Platform affected: All platforms.
    JVMs affected: 6.0 7.0.
    Jars affected: ibmjceprovider.jar ibmpkcs11impl.jar.
    The fix will be available in  60_SR15, 626_SR7, 70_SR6.
    The build date is 20130906 for ibmjceprovider.jar and 20130913
    for ibmpkcs11impl.jar.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IV49906

  • Reported component name

    SECURITY

  • Reported component ID

    620700125

  • Reported release

    260

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-09-23

  • Closed date

    2013-09-23

  • Last modified date

    2013-09-23

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

Fix information

  • Fixed component name

    SECURITY

  • Fixed component ID

    620700125

Applicable component levels

  • R260 PSY

       UP

  • R600 PSY

       UP



Document information

More support for: Runtimes for Java Technology
Security

Software version: 260

Reference #: IV49906

Modified date: 23 September 2013