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CVE-2007-0988

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.

Published:Feb 14, 2007

Last Modified:Apr 23, 2026

EPS:Feb 20, 2007

EPSS Score:0.0188

CVSS Score:4.3

Affected Products

Vendor

Product

Action

Vendor

Canonical

Product

Ubuntu Linux

Canonical

Ubuntu Linux

Vendor

Php

Product

Php

Php

Php

Vendor

Redhat

Product

Enterprise Linux

Redhat

Enterprise Linux

Vendor

Redhat

Product

Rhel Application Stack

Redhat

Rhel Application Stack

Vendor

Redhat

Product

Rhel Stronghold

Redhat

Rhel Stronghold

Exploits

No exploit reference

Common Weakness Enumeration

CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

Common Attack Pattern Enumeration and Classification (CAPEC)

CAPEC-10 Buffer Overflow via Environment Variables

CAPEC-100 Overflow Buffers

CAPEC-123 Buffer Manipulation

CAPEC-14 Client-side Injection-induced Buffer Overflow

CAPEC-24 Filter Failure through Buffer Overflow

CAPEC-42 MIME Conversion

CAPEC-44 Overflow Binary Resource File

CAPEC-45 Buffer Overflow via Symbolic Links

CAPEC-46 Overflow Variables and Tags

CAPEC-47 Buffer Overflow via Parameter Expansion

CAPEC-8 Buffer Overflow in an API Call

CAPEC-9 Buffer Overflow in Local Command-Line Utilities

Related CVEs

CVE-2026-13476 (CVSS 7.3) — IBM Informix Dynamic Server 14.10, 15.0, and 12.10 could allow an unauthenticated user to execute arbitrary co…

CVE-2026-13367 (CVSS 7.8) — IBM Informix Dynamic Server 14.10, and 15.0 contain a local privilege escalation vulnerability in the oninit s…

CVE-2026-47337 (CVSS 3.3) — Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling …

CVE-2026-47336 (CVSS 3.3) — Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/A…

CVE-2026-47335 (CVSS 5.5) — Ubuntu Linux 6.8 contains SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor n…

CVE-2026-47334 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly sleep while holding a spinlock…

CVE-2026-47333 (CVSS 7.8) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the si…

CVE-2026-47332 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly validate the size of an intern…

CVE-2026-47331 (CVSS 7.8) — Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An…

CVE-2026-47330 (CVSS 3.3) — Ubuntu Linux 6.8, 7.17 and 7.0 contain AppArmor SAUCE patches which can, under certain circumstances, use an u…

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://osvdb.org/32762

http://rhn.redhat.com/errata/RHSA-2007-0089.html

http://secunia.com/advisories/24195

http://secunia.com/advisories/24217

http://secunia.com/advisories/24236

http://secunia.com/advisories/24248

http://secunia.com/advisories/24284

http://secunia.com/advisories/24295

http://secunia.com/advisories/24322

http://secunia.com/advisories/24419

http://secunia.com/advisories/24421

http://secunia.com/advisories/24432

http://secunia.com/advisories/24606

http://secunia.com/advisories/24642

http://secunia.com/advisories/25056

http://secunia.com/advisories/25423

http://secunia.com/advisories/25850

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-security.org/MOPB/MOPB-05-2007.html

http://www.php.net/releases/5_2_1.php

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

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://osvdb.org/32762

http://rhn.redhat.com/errata/RHSA-2007-0089.html

http://secunia.com/advisories/24195

http://secunia.com/advisories/24217

http://secunia.com/advisories/24236

http://secunia.com/advisories/24248

http://secunia.com/advisories/24284

http://secunia.com/advisories/24295

http://secunia.com/advisories/24322

http://secunia.com/advisories/24419

http://secunia.com/advisories/24421

http://secunia.com/advisories/24432

http://secunia.com/advisories/24606

http://secunia.com/advisories/24642

http://secunia.com/advisories/25056

http://secunia.com/advisories/25423

http://secunia.com/advisories/25850

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-security.org/MOPB/MOPB-05-2007.html

http://www.php.net/releases/5_2_1.php

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

Common Vulnerability Scoring System

Attack Vector

Network

Adjacent

Local

Physical

Privileges Required

None

Low

High

User Interaction

None

Required

Scope

Unchanged

Changed

Confidentiality

None

Low

High

Integrity

None

Low

High

Availability

None

Low

High