Vulnerability CVE-2007-0988


Published: 2007-02-20   Modified: 2012-02-12

Description:
The zend_hash_init function in PHP 5 before 5.2.1 and PHP 4 before 4.4.5, when running on a 64-bit platform, allows context-dependent attackers to cause a denial of service (infinite loop) by unserializing certain integer expressions, which only cause 32-bit arguments to be used after the check for a negative value, as demonstrated by an "a:2147483649:{" argument.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
PHP unserialize() 64 bit Array Creation Denial of Service Vulnerability
Stefan Esser
03.03.2007

Type:

CWE-119

(Improper Restriction of Operations within the Bounds of a Memory Buffer)

CVSS2 => (AV:N/AC:M/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
ZEND -> Engine 
PHP -> PHP 
Canonical -> Ubuntu linux 

 References:
ftp://patches.sgi.com/support/free/security/advisories/20070201-01-P.asc
http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=228858
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&objectID=c01056506
http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?lang=en&cc=us&objectID=c01086137
http://rhn.redhat.com/errata/RHSA-2007-0089.html
http://security.gentoo.org/glsa/glsa-200703-21.xml
http://securityreason.com/securityalert/2315
http://support.avaya.com/elmodocs2/security/ASA-2007-101.htm
http://support.avaya.com/elmodocs2/security/ASA-2007-136.htm
http://www.mandriva.com/security/advisories?name=MDKSA-2007:048
http://www.novell.com/linux/security/advisories/2007_32_php.html
http://www.openpkg.com/security/advisories/OpenPKG-SA-2007.010.html
http://www.php.net/releases/5_2_1.php
http://www.php-security.org/MOPB/MOPB-05-2007.html
http://www.redhat.com/support/errata/RHSA-2007-0076.html
http://www.redhat.com/support/errata/RHSA-2007-0081.html
http://www.redhat.com/support/errata/RHSA-2007-0082.html
http://www.redhat.com/support/errata/RHSA-2007-0088.html
http://www.securityfocus.com/archive/1/461462/100/0/threaded
http://www.securitytracker.com/id?1017671
http://www.trustix.org/errata/2007/0009/
http://www.ubuntu.com/usn/usn-424-1
http://www.ubuntu.com/usn/usn-424-2
http://www.us.debian.org/security/2007/dsa-1264
http://www.vupen.com/english/advisories/2007/1991
http://www.vupen.com/english/advisories/2007/2374
https://exchange.xforce.ibmcloud.com/vulnerabilities/32709
https://issues.rpath.com/browse/RPL-1088
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11092

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