CVE-2009-4418

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Summary

CVECVE-2009-4418
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2009-12-24 17:30:00 UTC
Updated2026-04-23 00:35:47 UTC
DescriptionThe unserialize function in PHP 5.3.0 and earlier allows context-dependent attackers to cause a denial of service (resource consumption) via a deeply nested serialized variable, as demonstrated by a string beginning with a:1: followed by many {a:1: sequences.

Risk And Classification

Primary CVSS: v2.0 5 from [email protected]

AV:N/AC:L/Au:N/C:N/I:N/A:P

Problem Types: CWE-189 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial

AV:N/AC:L/Au:N/C:N/I:N/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Php Php 5 All All All
Application Php Php 5.0 rc1 All All
Application Php Php 5.0 rc2 All All
Application Php Php 5.0 rc3 All All
Application Php Php 5.0.0 All All All
Application Php Php 5.0.0 beta1 All All
Application Php Php 5.0.0 beta2 All All
Application Php Php 5.0.0 beta3 All All
Application Php Php 5.0.0 beta4 All All
Application Php Php 5.0.0 rc1 All All
Application Php Php 5.0.0 rc2 All All
Application Php Php 5.0.0 rc3 All All
Application Php Php 5.0.1 All All All
Application Php Php 5.0.2 All All All
Application Php Php 5.0.3 All All All
Application Php Php 5.0.4 All All All
Application Php Php 5.0.5 All All All
Application Php Php 5.1.0 All All All
Application Php Php 5.1.1 All All All
Application Php Php 5.1.2 All All All
Application Php Php 5.1.3 All All All
Application Php Php 5.1.4 All All All
Application Php Php 5.1.5 All All All
Application Php Php 5.1.6 All All All
Application Php Php 5.2.0 All All All
Application Php Php 5.2.1 All All All
Application Php Php 5.2.10 All All All
Application Php Php 5.2.11 All All All
Application Php Php 5.2.2 All All All
Application Php Php 5.2.3 All All All
Application Php Php 5.2.4 All All All
Application Php Php 5.2.4 All windows All
Application Php Php 5.2.5 All All All
Application Php Php 5.2.6 All All All
Application Php Php 5.2.7 All All All
Application Php Php 5.2.8 All All All
Application Php Php 5.2.9 All All All
Application Php Php All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
Be Suspicious. Online Security Blog - Suspekt.org af854a3a-2127-422b-91ae-364da2661108 www.suspekt.org
Suspekt… » Blog Archive » Shocking News in PHP Exploitation af854a3a-2127-422b-91ae-364da2661108 www.suspekt.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

OrganizationPublishedContributorStatement
Red Hat2010-01-04Tomas HogerRed Hat does not consider this to be a security flaw. For further details, see https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2009-4418

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