Bug 239321

Summary: CVE-2007-1700: session extension miscalculation
Product: Red Hat Enterprise Linux 4 Reporter: paul boin <paul.boin>
Component: phpAssignee: Joe Orton <jorton>
Status: CLOSED DUPLICATE QA Contact: David Lawrence <dkl>
Severity: medium Docs Contact:
Priority: medium    
Version: 4.5   
Target Milestone: ---   
Target Release: ---   
Hardware: All   
OS: Linux   
Fixed In Version: Doc Type: Bug Fix
Doc Text:
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Clone Of: Environment:
Last Closed: 2007-05-15 16:02:39 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:

Description paul boin 2007-05-07 15:28:03 UTC
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 16:02:39 UTC

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