CVE-2008-5501

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 3.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2008-12-17 · updated 2026-06-16

Description

The layout engine in Mozilla Firefox 3.x before 3.0.5, 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 via vectors that trigger an assertion failure.

Affected products

Canonical Ubuntu Linux: 8.04, 8.10
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

How to fix

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

References

http://secunia.com/advisories/33188
http://secunia.com/advisories/33189
http://secunia.com/advisories/33203
http://secunia.com/advisories/33216
http://secunia.com/advisories/33421
http://secunia.com/advisories/34501
http://sunsolve.sun.com/search/document.do?assetkey=1-26-256408-1
http://www.mandriva.com/security/advisories?name=MDVSA-2008:245
http://www.mozilla.org/security/announce/2008/mfsa2008-60.html
http://www.redhat.com/support/errata/RHSA-2008-1036.html
http://www.redhat.com/support/errata/RHSA-2008-1037.html
http://www.redhat.com/support/errata/RHSA-2009-0002.html

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