CVE-2009-4418

Severity

50%

Complexity

99%

Confidentiality

48%

The 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.

The 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.

CVSS 2.0 Base Score 5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:N/C:N/I:N/A:P).

Overview

Type

PHP

First reported 15 years ago

2009-12-24 17:30:00

Last updated 6 years ago

2018-10-30 16:25:00

Affected Software

PHP PHP 5.0.0

5.0.0

PHP PHP 5.0.0 Beta1

5.0.0

PHP PHP 5.0.0 Beta2

5.0.0

PHP PHP 5.0.0 Beta3

5.0.0

PHP PHP 5.0.0 Beta4

5.0.0

PHP PHP 5.0.0 RC1

5.0.0

PHP PHP 5.0.0 RC2

5.0.0

PHP PHP 5.0.0 RC3

5.0.0

PHP PHP 5.0.1

5.0.1

PHP PHP 5.0.2

5.0.2

PHP PHP 5.0.3

5.0.3

PHP PHP 5.0.4

5.0.4

PHP PHP 5.0.5

5.0.5

PHP PHP 5.1.0

5.1.0

PHP PHP 5.1.1

5.1.1

PHP PHP 5.1.2

5.1.2

PHP PHP 5.1.3

5.1.3

PHP 5.1.4

5.1.4

PHP PHP 5.1.5

5.1.5

PHP PHP 5.1.6

5.1.6

PHP 5.2.0

5.2.0

PHP 5.2.1

5.2.1

PHP 5.2.2

5.2.2

PHP 5.2.3

5.2.3

PHP 5.2.4

5.2.4

PHP 5.2.5

5.2.5

PHP 5.2.6

5.2.6

PHP 5.2.7

5.2.7

PHP 5.2.8

5.2.8

PHP 5.2.9

5.2.9

PHP 5.2.10

5.2.10

PHP 5.2.11

5.2.11

PHP PHP

References

http://www.suspekt.org/2009/11/28/shocking-news-in-php-exploitation/

http://www.suspekt.org/downloads/POC2009-ShockingNewsInPHPExploitation.pdf

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