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Bug 239321 - CVE-2007-1700: session extension miscalculation
CVE-2007-1700: session extension miscalculation
Status: CLOSED DUPLICATE of bug 240167
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: php (Show other bugs)
All Linux
medium Severity medium
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Assigned To: Joe Orton
David Lawrence
Depends On:
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Reported: 2007-05-07 11:28 EDT by paul boin
Modified: 2007-11-16 20:14 EST (History)
0 users

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Fixed In Version:
Doc Type: Bug Fix
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Last Closed: 2007-05-15 12:02:39 EDT
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Description paul boin 2007-05-07 11:28:03 EDT
Like the other PHP bugs, this one is mentioned in 230556, but not explicitly
closed and documented in any errata that I can find.


The session extension in PHP 4 before 4.4.5, and PHP 5 before 5.2.1, calculates
the reference count for the session variables without considering the internal
pointer from the session globals, which allows context-dependent attackers to
execute arbitrary code via a crafted string in the session_register after
unsetting HTTP_SESSION_VARS and _SESSION, which destroys the session data Hashtable.

    * MISC:http://www.php-security.org/MOPB/MOPB-30-2007.html
    * DEBIAN:DSA-1283
    * URL:http://www.debian.org/security/2007/dsa-1283
    * UBUNTU:USN-455-1
    * URL:http://www.ubuntu.com/usn/usn-455-1
    * BID:23119
    * URL:http://www.securityfocus.com/bid/23119
    * SECUNIA:25062
    * URL:http://secunia.com/advisories/25062
Comment 1 Joe Orton 2007-05-15 12:02:39 EDT

*** This bug has been marked as a duplicate of 240167 ***

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