Buffer overflow in PHP - CVE-2007-0988
Published: October 10, 2019 / Updated: June 8, 2025
Vulnerability identifier: #VU110457
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2007-0988
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to perform service disruption.
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. Availability also affected by time out alarm for the script, which helps prevent infinite loops.
Affected software
PHP
Gentoo Linux
dev-lang/php
Gentoo Linux
dev-lang/php
How to mitigate CVE-2007-0988
Install update from vendor's website.
PHP - update to 4.0.1
dev-lang/php - update to 5.2.1-r3
dev-lang/php - update to 5.2.1-r3
External 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.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