Denial of Service (DoS) Affecting php package, versions [,5.3.1)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.13% (49th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-UNMANAGED-PHP-2335172
  • published12 Jan 2022
  • disclosed24 Dec 2009
  • creditUnknown

Introduced: 24 Dec 2009

CVE-2009-4418  (opens in a new tab)
CWE-189  (opens in a new tab)

How to fix?

Upgrade php to version 5.3.1 or higher.

Overview

Affected versions of this package are vulnerable to Denial of Service (DoS). 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 Scores

version 3.1