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Fencer Vulns
low 2.6

CVE-2006-4486 json

Integer overflow in memory allocation routines in PHP before 5.1.6, when running on a 64-bit system, allows context-dependent attackers to…

published 2006-08-31 20 y ago modified 2026-06-16 4 mo ago also EUVD-2006-4474

cvss
2.6
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.4%
EPSS 2.4% chance of exploitation in 30 days, percentile 83%
public exploits
0
none known

Summary

Integer overflow in memory allocation routines in PHP before 5.1.6, when running on a 64-bit system, allows context-dependent attackers to bypass the memory_limit restriction.

Patch / fix

  • php RHEL 1 APPLICATION_STACK 5.1.4-1.el4s1.4
  • php-gd RHEL 1 APPLICATION_STACK 5.1.4-1.el4s1.4
  • php-dba RHEL 1 APPLICATION_STACK 5.1.4-1.el4s1.4
  • php-pdo RHEL 1 APPLICATION_STACK 5.1.4-1.el4s1.4
  • php-xml RHEL 1 APPLICATION_STACK 5.1.4-1.el4s1.4
  • php-imap RHEL 1 APPLICATION_STACK 5.1.4-1.el4s1.4
  • php-ldap RHEL 1 APPLICATION_STACK 5.1.4-1.el4s1.4
  • php-odbc RHEL 1 APPLICATION_STACK 5.1.4-1.el4s1.4

red hat advisories RHSA-2006:0688RHSA-2006:0669

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-2006-4486 updated

security flaw

  • Red Hat Application Stack v1 for Enterprise Linux AS (v.4) php 5.1.4-1.el4s1.4, php-gd 5.1.4-1.el4s1.4, php-dba 5.1.4-1.el4s1.4, php-pdo 5.1.4-1.el4s1.4, php-xml 5.1.4-1.el4s1.4, php-imap 5.1.4-1.el4s1.4, +10 more Red Hat Application Stack v1 for Enterprise Linux ES (v.4) php 5.1.4-1.el4s1.4, php-gd 5.1.4-1.el4s1.4, php-dba 5.1.4-1.el4s1.4, php-pdo 5.1.4-1.el4s1.4, php-xml 5.1.4-1.el4s1.4, php-imap 5.1.4-1.el4s1.4, +10 more
    fixed: vendor fix RHSA-2006:0688
  • Red Hat Desktop version 3 php 4.3.2-36.ent, php-imap 4.3.2-36.ent, php-ldap 4.3.2-36.ent, php-odbc 4.3.2-36.ent, php-mysql 4.3.2-36.ent, php-pgsql 4.3.2-36.ent Red Hat Enterprise Linux AS version 3 php 4.3.2-36.ent, php-imap 4.3.2-36.ent, php-ldap 4.3.2-36.ent, php-odbc 4.3.2-36.ent, php-mysql 4.3.2-36.ent, php-pgsql 4.3.2-36.ent Red Hat Enterprise Linux AS version 4 php 4.3.9-3.18, php-gd 4.3.9-3.18, php-imap 4.3.9-3.18, php-ldap 4.3.9-3.18, php-odbc 4.3.9-3.18, php-pear 4.3.9-3.18, +7 more Red Hat Enterprise Linux Desktop version 4 php 4.3.9-3.18, php-gd 4.3.9-3.18, php-imap 4.3.9-3.18, php-ldap 4.3.9-3.18, php-odbc 4.3.9-3.18, php-pear 4.3.9-3.18, +7 more
    fixed: vendor fix RHSA-2006:0669
  • Red Hat Enterprise Linux ES version 2.1
    fixed: vendor fix RHSA-2006:0682
  • Red Hat Enterprise Linux ES version 3 php 4.3.2-36.ent, php-imap 4.3.2-36.ent, php-ldap 4.3.2-36.ent, php-odbc 4.3.2-36.ent, php-mysql 4.3.2-36.ent, php-pgsql 4.3.2-36.ent Red Hat Enterprise Linux ES version 4 php 4.3.9-3.18, php-gd 4.3.9-3.18, php-imap 4.3.9-3.18, php-ldap 4.3.9-3.18, php-odbc 4.3.9-3.18, php-pear 4.3.9-3.18, +7 more
    fixed: vendor fix RHSA-2006:0669
  • Red Hat Enterprise Linux WS version 2.1
    fixed: vendor fix RHSA-2006:0682
  • Red Hat Enterprise Linux WS version 3 php 4.3.2-36.ent, php-imap 4.3.2-36.ent, php-ldap 4.3.2-36.ent, php-odbc 4.3.2-36.ent, php-mysql 4.3.2-36.ent, php-pgsql 4.3.2-36.ent Red Hat Enterprise Linux WS version 4 php 4.3.9-3.18, php-gd 4.3.9-3.18, php-imap 4.3.9-3.18, php-ldap 4.3.9-3.18, php-odbc 4.3.9-3.18, php-pear 4.3.9-3.18, +7 more
    fixed: vendor fix RHSA-2006:0669
  • Red Hat Linux Advanced Workstation 2.1
    fixed: vendor fix RHSA-2006:0682

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

2.36% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 2.0 2.6 AV:N/AC:H/Au:N/C:N/I:P/A:N

Classification

Weakness
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.