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PK49355: CVE-2007-1863 MOD_CACHE CRASH WITH MALICIOUS REQUEST

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • mod_cache has a defect which can cause the httpd process to
    crash when cache is enabled and a maliciously formed
    Cache-Control request header is received.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: IBM HTTP SERVER configurations with the      *
    * CacheEnable directive active in their configuration          *
    ****************************************************************
    * PROBLEM DESCRIPTION: mod_cache can be forced to crash a web  *
    * server child process using a malicious request.              *
    ****************************************************************
    * RECOMMENDATION: Apply this fix or enable the circumvention   *
    * if CacheEnable is used.                                      *
    ****************************************************************
    mod_cache does not sanity check certain parts of the request,
    and can crash the active child process when processing certain
    invalid requests.
    

Problem conclusion

  • mod_cache was updated to validate the critical parts of the
    request and assumes zero values when the value is not provided.
    This fix is targeted for:
    Fix pack 6.1.0.13.
    Fix pack 6.0.2.23.
    Cumulative e-fix PK53584 for 2.0.47.1
    This vulnerability does not affect IHS 1.3.28.1.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PK49355

  • Reported component name

    IBM HTTP SERVER

  • Reported component ID

    5724J0801

  • Reported release

    61A

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2007-07-19

  • Closed date

    2007-08-16

  • Last modified date

    2007-10-25

  • 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

    IBM HTTP SERVER

  • Fixed component ID

    5724J0801

Applicable component levels

  • R60A PSN

       UP

  • R60H PSN

       UP

  • R60P PSN

       UP

  • R60I PSN

       UP

  • R60S PSN

       UP

  • R60W PSN

       UP

  • R60Z PSN

       UP

  • R61A PSN

       UP

  • R61H PSN

       UP

  • R61P PSN

       UP

  • R61I PSN

       UP

  • R61S PSN

       UP

  • R61W PSN

       UP

  • R61Z PSN

       UP



Document information

More support for: IBM HTTP Server
Runtime

Software version: 6.1

Reference #: PK49355

Modified date: 25 October 2007


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