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Fencer Vulns
medium 5.0

CVE-2007-3998 json

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 a…

published 2007-09-04 19 y ago modified 2026-06-16 4 mo ago also EUVD-2007-3982

cvss
5.0
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.0%
EPSS 3.0% chance of exploitation in 30 days, percentile 87%
public exploits
0
none known

Summary

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.

Patch / fix

  • php php 4.4.8, 5.2.4
  • php RHEL 2 APPLICATION_STACK 5.2.3-3.el5s2
  • php-gd RHEL 2 APPLICATION_STACK 5.2.3-3.el5s2
  • php-cli RHEL 2 APPLICATION_STACK 5.2.3-3.el5s2
  • php-dba RHEL 2 APPLICATION_STACK 5.2.3-3.el5s2
  • php-pdo RHEL 2 APPLICATION_STACK 5.2.3-3.el5s2
  • php-xml RHEL 2 APPLICATION_STACK 5.2.3-3.el5s2
  • php-imap RHEL 2 APPLICATION_STACK 5.2.3-3.el5s2
  • php-ldap RHEL 2 APPLICATION_STACK 5.2.3-3.el5s2

red hat advisories RHSA-2007:0917RHSA-2007:0891RHSA-2007:0890RHSA-2007:0889

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2007-3998 updated

php floating point exception inside wordwrap

  • Red Hat Application Stack v1 for Enterprise Linux AS (v.4) php 5.1.6-3.el4s1.8, php-gd 5.1.6-3.el4s1.8, php-cli 5.1.6-3.el4s1.8, php-dba 5.1.6-3.el4s1.8, php-pdo 5.1.6-3.el4s1.8, php-xml 5.1.6-3.el4s1.8, +12 more Red Hat Application Stack v1 for Enterprise Linux ES (v.4) php 5.1.6-3.el4s1.8, php-gd 5.1.6-3.el4s1.8, php-cli 5.1.6-3.el4s1.8, php-dba 5.1.6-3.el4s1.8, php-pdo 5.1.6-3.el4s1.8, php-xml 5.1.6-3.el4s1.8, +12 more
    fixed: vendor fix RHSA-2007:0891
  • Red Hat Desktop version 3 php 4.3.2-43.ent, php-imap 4.3.2-43.ent, php-ldap 4.3.2-43.ent, php-odbc 4.3.2-43.ent, php-mysql 4.3.2-43.ent, php-pgsql 4.3.2-43.ent
    fixed: vendor fix RHSA-2007:0889
  • Red Hat Enterprise Linux (v. 5 server) php 5.1.6-15.el5, php-gd 5.1.6-15.el5, php-cli 5.1.6-15.el5, php-dba 5.1.6-15.el5, php-pdo 5.1.6-15.el5, php-xml 5.1.6-15.el5, +12 more
    fixed: vendor fix RHSA-2007:0890
  • Red Hat Enterprise Linux AS version 3 php 4.3.2-43.ent, php-imap 4.3.2-43.ent, php-ldap 4.3.2-43.ent, php-odbc 4.3.2-43.ent, php-mysql 4.3.2-43.ent, php-pgsql 4.3.2-43.ent
    fixed: vendor fix RHSA-2007:0889
  • Red Hat Enterprise Linux AS version 4 php 4.3.9-3.22.9, php-gd 4.3.9-3.22.9, php-imap 4.3.9-3.22.9, php-ldap 4.3.9-3.22.9, php-odbc 4.3.9-3.22.9, php-pear 4.3.9-3.22.9, +7 more Red Hat Enterprise Linux Desktop version 4 php 4.3.9-3.22.9, php-gd 4.3.9-3.22.9, php-imap 4.3.9-3.22.9, php-ldap 4.3.9-3.22.9, php-odbc 4.3.9-3.22.9, php-pear 4.3.9-3.22.9, +7 more Red Hat Enterprise Linux Desktop Workstation (v. 5 client) php 5.1.6-15.el5, php-gd 5.1.6-15.el5, php-cli 5.1.6-15.el5, php-dba 5.1.6-15.el5, php-pdo 5.1.6-15.el5, php-xml 5.1.6-15.el5, +12 more
    fixed: vendor fix RHSA-2007:0890
  • Red Hat Enterprise Linux ES version 3 php 4.3.2-43.ent, php-imap 4.3.2-43.ent, php-ldap 4.3.2-43.ent, php-odbc 4.3.2-43.ent, php-mysql 4.3.2-43.ent, php-pgsql 4.3.2-43.ent
    fixed: vendor fix RHSA-2007:0889
  • Red Hat Enterprise Linux ES version 4 php 4.3.9-3.22.9, php-gd 4.3.9-3.22.9, php-imap 4.3.9-3.22.9, php-ldap 4.3.9-3.22.9, php-odbc 4.3.9-3.22.9, php-pear 4.3.9-3.22.9, +7 more
    fixed: vendor fix RHSA-2007:0890
  • Red Hat Enterprise Linux WS version 3 php 4.3.2-43.ent, php-imap 4.3.2-43.ent, php-ldap 4.3.2-43.ent, php-odbc 4.3.2-43.ent, php-mysql 4.3.2-43.ent, php-pgsql 4.3.2-43.ent
    fixed: vendor fix RHSA-2007:0889
show 1 more
  • Red Hat Enterprise Linux WS version 4 php 4.3.9-3.22.9, php-gd 4.3.9-3.22.9, php-imap 4.3.9-3.22.9, php-ldap 4.3.9-3.22.9, php-odbc 4.3.9-3.22.9, php-pear 4.3.9-3.22.9, +7 more
    fixed: vendor fix RHSA-2007:0890

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

2.99% chance of exploitation in the next 30 days, higher than 87% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:N/A:P

Classification

Weakness
  • CWE-20 Improper Input Validation
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.