CVE-2006-4486

critical

Description

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.

References

https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11086

https://issues.rpath.com/browse/RPL-683

https://euvd.enisa.europa.eu/vulnerability/EUVD-2006-4474

http://www.ubuntu.com/usn/usn-362-1

http://www.turbolinux.com/security/2006/TLSA-2006-38.txt

http://www.securityfocus.com/bid/19582

http://www.securityfocus.com/archive/1/447866/100/0/threaded

http://www.redhat.com/support/errata/RHSA-2006-0682.html

http://www.redhat.com/support/errata/RHSA-2006-0669.html

http://www.php.net/release_5_1_6.php

http://www.php.net/ChangeLog-5.php#5.1.6

http://www.novell.com/linux/security/advisories/2006_52_php.html

http://www.hardened-php.net/hphp/changelog.html#hardening_patch_0.4.14

http://www.debian.org/security/2007/dsa-1331

http://support.avaya.com/elmodocs2/security/ASA-2006-223.htm

http://support.avaya.com/elmodocs2/security/ASA-2006-222.htm

http://support.avaya.com/elmodocs2/security/ASA-2006-221.htm

http://securitytracker.com/id?1016984

http://secunia.com/advisories/25945

http://secunia.com/advisories/22538

http://secunia.com/advisories/22487

http://secunia.com/advisories/22440

http://secunia.com/advisories/22331

http://secunia.com/advisories/22225

http://secunia.com/advisories/22069

http://secunia.com/advisories/22004

http://secunia.com/advisories/21546

http://rhn.redhat.com/errata/RHSA-2006-0688.html

Details

Source: Mitre, NVD

Published: 2006-08-31

Updated: 2026-06-16

Risk Information

CVSS v2

Base Score: 2.6

Vector: CVSS2#AV:N/AC:H/Au:N/C:N/I:P/A:N

Severity: Low

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.0236