What’s Vulnerable › Vulnerabilities

CVE-2007-0908

• Severity: medium (CVSS 5.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 12.2% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2007-02-13 · updated 2026-06-16
• Weakness: CWE-20

Description

The WDDX deserializer in the wddx extension in PHP 5 before 5.2.1 and PHP 4 before 4.4.5 does not properly initialize the key_length variable for a numerical key, which allows context-dependent attackers to read stack memory via a wddxPacket element that contains a variable with a string name before a numerical variable.

Affected products

• Canonical Ubuntu Linux: 5.10, 6.06, 6.10
• PHP: from 4.0.0 before 4.4.5; from 5.0.0 before 5.2.1; 4.0, 4.0-beta_4_patch1, 4.0-beta1, 4.0-beta2, 4.0-beta3, 4.0-beta4 (+2) — fixed in 4.4.5, 5.2.1

How to fix

Upgrade to a fixed version: PHP 4.4.5, 5.2.1. Check the vendor advisory for mitigations.

References

• http://lists.suse.com/archive/suse-security-announce/2007-Mar/0003.html
• http://osvdb.org/32766
• http://rhn.redhat.com/errata/RHSA-2007-0089.html
• http://secunia.com/advisories/24089
• http://secunia.com/advisories/24195
• http://secunia.com/advisories/24217
• http://secunia.com/advisories/24236
• http://secunia.com/advisories/24248
• http://secunia.com/advisories/24284
• http://secunia.com/advisories/24295
• http://secunia.com/advisories/24322

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