CVE-2007-3998

Name: CVE-2007-3998
Creator: NVD / NIST
Published: 2007-09-04T18:17:00+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 2.99%

Last modified Jun 16, 2026

CVE-2007-3998 is a vulnerability of currently unknown severity. The wordwrap function in PHP 4 before 4.4.8, and PHP 5 before 5.2.4, does not properly use the breakcharlen variable, which allows remote attackers to cause a denial of service (divide-by-zero error and application crash, or infinite loop) via certain arguments, as demonstrated by a 'chr(0), 0, ""' argument set.. EPSS estimates a 2.99% chance of exploitation in the next 30 days.

Description

The wordwrap function in PHP 4 before 4.4.8, and PHP 5 before 5.2.4, does not properly use the breakcharlen variable, which allows remote attackers to cause a denial of service (divide-by-zero error and application crash, or infinite loop) via certain arguments, as demonstrated by a 'chr(0), 0, ""' argument set.

Metrics

EPSS Probability

2.99%

85.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Php	Php	>= 4.0.0, < 4.4.8
Php	Php	>= 5.0.0, < 5.2.4
Debian	Debian Linux	3.1
Debian	Debian Linux	4.0
Canonical	Ubuntu Linux	6.06
Canonical	Ubuntu Linux	6.10
Canonical	Ubuntu Linux	7.04
Canonical	Ubuntu Linux	7.10

References

http://lists.opensuse.org/opensuse-security-announce/2008-01/msg00006.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2007-0889.htmlThird Party Advisory
http://secunia.com/advisories/26642Third Party Advisory
http://secunia.com/advisories/26822Third Party Advisory
http://secunia.com/advisories/26838Third Party Advisory
http://secunia.com/advisories/26871Third Party Advisory
http://secunia.com/advisories/26895Third Party Advisory
http://secunia.com/advisories/26930Third Party Advisory
http://secunia.com/advisories/26967Third Party Advisory
http://secunia.com/advisories/27102Third Party Advisory
http://secunia.com/advisories/27377Third Party Advisory
http://secunia.com/advisories/27545Third Party Advisory
http://secunia.com/advisories/27864Third Party Advisory
http://secunia.com/advisories/28249Third Party Advisory
http://secunia.com/advisories/28658Third Party Advisory
http://secunia.com/advisories/30288Third Party Advisory
http://secweb.se/en/advisories/php-wordwrap-vulnerability/Third Party Advisory
http://support.avaya.com/elmodocs2/security/ASA-2007-449.htmThird Party Advisory
http://www.debian.org/security/2008/dsa-1444Third Party Advisory
http://www.debian.org/security/2008/dsa-1578Third Party Advisory
http://www.gentoo.org/security/en/glsa/glsa-200710-02.xmlThird Party Advisory
http://www.mandriva.com/security/advisories?name=MDKSA-2007:187Third Party Advisory
http://www.php.net/ChangeLog-5.php#5.2.4Vendor Advisory
http://www.php.net/releases/5_2_4.phpVendor Advisory
http://www.redhat.com/support/errata/RHSA-2007-0890.htmlThird Party Advisory
http://www.redhat.com/support/errata/RHSA-2007-0891.htmlThird Party Advisory
http://www.trustix.org/errata/2007/0026/Broken Link
http://www.ubuntu.com/usn/usn-549-2Third Party Advisory
http://www.vupen.com/english/advisories/2007/3023Permissions Required, Third Party Advisory
https://issues.rpath.com/browse/RPL-1693Broken Link
https://issues.rpath.com/browse/RPL-1702Broken Link
https://launchpad.net/bugs/173043Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10603Third Party Advisory
https://usn.ubuntu.com/549-1/Third Party Advisory
https://www.redhat.com/archives/fedora-package-announce/2007-September/msg00354.htmlThird Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2008-01/msg00006.htmlThird Party Advisory
http://rhn.redhat.com/errata/RHSA-2007-0889.htmlThird Party Advisory
http://secunia.com/advisories/26642Third Party Advisory
http://secunia.com/advisories/26822Third Party Advisory
http://secunia.com/advisories/26838Third Party Advisory
http://secunia.com/advisories/26871Third Party Advisory
http://secunia.com/advisories/26895Third Party Advisory
http://secunia.com/advisories/26930Third Party Advisory
http://secunia.com/advisories/26967Third Party Advisory
http://secunia.com/advisories/27102Third Party Advisory
http://secunia.com/advisories/27377Third Party Advisory
http://secunia.com/advisories/27545Third Party Advisory
http://secunia.com/advisories/27864Third Party Advisory
http://secunia.com/advisories/28249Third Party Advisory
http://secunia.com/advisories/28658Third Party Advisory
http://secunia.com/advisories/30288Third Party Advisory
http://secweb.se/en/advisories/php-wordwrap-vulnerability/Third Party Advisory
http://support.avaya.com/elmodocs2/security/ASA-2007-449.htmThird Party Advisory
http://www.debian.org/security/2008/dsa-1444Third Party Advisory
http://www.debian.org/security/2008/dsa-1578Third Party Advisory
http://www.gentoo.org/security/en/glsa/glsa-200710-02.xmlThird Party Advisory
http://www.mandriva.com/security/advisories?name=MDKSA-2007:187Third Party Advisory
http://www.php.net/ChangeLog-5.php#5.2.4Vendor Advisory
http://www.php.net/releases/5_2_4.phpVendor Advisory
http://www.redhat.com/support/errata/RHSA-2007-0890.htmlThird Party Advisory
http://www.redhat.com/support/errata/RHSA-2007-0891.htmlThird Party Advisory
http://www.trustix.org/errata/2007/0026/Broken Link
http://www.ubuntu.com/usn/usn-549-2Third Party Advisory
http://www.vupen.com/english/advisories/2007/3023Permissions Required, Third Party Advisory
https://issues.rpath.com/browse/RPL-1693Broken Link
https://issues.rpath.com/browse/RPL-1702Broken Link
https://launchpad.net/bugs/173043Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10603Third Party Advisory
https://usn.ubuntu.com/549-1/Third Party Advisory
https://www.redhat.com/archives/fedora-package-announce/2007-September/msg00354.htmlThird Party Advisory

Timeline

Published: Sep 4, 2007
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2007-3998?

How severe is CVE-2007-3998?

Severity scoring for CVE-2007-3998 is pending analysis. The EPSS model estimates a 2.99% probability of exploitation in the next 30 days.

How do I fix CVE-2007-3998?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2007-3998?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST