What’s Vulnerable › Vulnerabilities

CVE-2008-5500

• Severity: critical (CVSS 10.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2008-12-17 · updated 2026-06-16
• Weakness: CWE-399

Description

The layout engine in Mozilla Firefox 3.x before 3.0.5 and 2.x before 2.0.0.19, Thunderbird 2.x before 2.0.0.19, and SeaMonkey 1.x before 1.1.14 allows remote attackers to cause a denial of service (crash) and possibly trigger memory corruption via vectors related to (1) a reachable assertion or (2) an integer overflow.

Affected products

• Canonical Ubuntu Linux: 6.06, 7.10, 8.04, 8.10
• Debian Linux: 4.0, 5.0
• Mozilla Firefox: from 2.0 before 2.0.0.19; from 3.0 before 3.0.5 — fixed in 2.0.0.19, 3.0.5
• Mozilla Seamonkey: from 1.0 before 1.1.14 — fixed in 1.1.14
• Mozilla Thunderbird: from 2.0 before 2.0.0.19 — fixed in 2.0.0.19

How to fix

Upgrade to a fixed version: Mozilla Firefox 2.0.0.19, 3.0.5; Mozilla Seamonkey 1.1.14; Mozilla Thunderbird 2.0.0.19. Check the vendor advisory for mitigations.

References

• http://secunia.com/advisories/33184
• http://secunia.com/advisories/33188
• http://secunia.com/advisories/33189
• http://secunia.com/advisories/33203
• http://secunia.com/advisories/33204
• http://secunia.com/advisories/33205
• http://secunia.com/advisories/33216
• http://secunia.com/advisories/33231
• http://secunia.com/advisories/33232
• http://secunia.com/advisories/33408
• http://secunia.com/advisories/33415
• http://secunia.com/advisories/33421

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