IY84096: SECURITY: Remote denial of service during CONNECT / ATTACH processing

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Buffer overflow condition on server because of bad connect
    request could cause memory corruption and crash the instance.
    A malicious CONNECT or ATTACH request sent to a DB2
    server may cause a buffer overflow and instance crash, resulting
    in a denial of service.
    
    Affected DB2 versions: DB2 on UNIX, Linux and Windows (all
    versions, all platforms)
    
    This problem was reported by Imperva, Amichai Shulman, Ohad Atia
    and Elad Tabak.
    

Local fix

  • Disable or restrict remote access to the database server.
    
    Disable the DB2 TCP/IP listener if not required (set SVCENAME
    to NULL in the database manager configuration), or use a
    firewall to restrict connections to the DB2 TCP/IP listener
    port.
    

Problem summary

  • Buffer overflow condition on server because of bad connect
    request could cause memory corruption and crash the instance.
    A malicious CONNECT or ATTACH request sent to a DB2
    server may cause a buffer overflow and instance crash, resulting
    in a denial of service.
    
    Affected DB2 versions: DB2 on UNIX, Linux and Windows (all
    versions, all platforms)
    
    This problem was reported by Imperva, Amichai Shulman, Ohad Atia
    and Elad Tabak.
    

Problem conclusion

  • The complete fix (IY84096) for this problem first appears in DB2
    UDB Version 8.1 FixPak 12
    

Temporary fix

  • Disable or restrict remote access to the database server.
    
    Disable the DB2 TCP/IP listener if not required (set SVCENAME
    to NULL in the database manager configuration), or use a
    firewall to restrict connections to the DB2 TCP/IP listener
    port.
    

Comments

APAR Information

  • APAR number

    IY84096

  • Reported component name

    DB2 UDB ESE AIX

  • Reported component ID

    5765F4100

  • Reported release

    820

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    YesHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2006-04-18

  • Closed date

    2006-05-15

  • Last modified date

    2006-05-30

  • 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

    DB2 UDB ESE AIX

  • Fixed component ID

    5765F4100

Applicable component levels

  • R820 PSN

       UP



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Document information


More support for:

DB2 for Linux, UNIX and Windows

Software version:

820

Reference #:

IY84096

Modified date:

2006-05-30

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