What’s Vulnerable › Vulnerabilities

CVE-2008-2809

• Severity: medium (CVSS 4.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2008-07-08 · updated 2026-06-16
• Weakness: CWE-20

Description

Mozilla 1.9 M8 and earlier, Mozilla Firefox 2 before 2.0.0.15, SeaMonkey 1.1.5 and other versions before 1.1.10, Netscape 9.0, and other Mozilla-based web browsers, when a user accepts an SSL server certificate on the basis of the CN domain name in the DN field, regard the certificate as also accepted for all domain names in subjectAltName:dNSName fields, which makes it easier for remote attackers to trick a user into accepting an invalid certificate for a spoofed web site.

Affected products

• Mozilla Firefox: 2.0.0.1, 2.0.0.2, 2.0.0.3, 2.0.0.4, 2.0.0.5, 2.0.0.6 (+8)
• Mozilla Geckb: through 1.9
• Mozilla Seamonkey: through 1.0.9; 1.1.5
• Netscape Navigator: 9.0

References

• http://lists.opensuse.org/opensuse-security-announce/2008-07/msg00004.html
• http://nils.toedtmann.net/pub/subjectAltName.txt
• http://rhn.redhat.com/errata/RHSA-2008-0616.html
• http://secunia.com/advisories/30878
• http://secunia.com/advisories/30898
• http://secunia.com/advisories/30903
• http://secunia.com/advisories/30911
• http://secunia.com/advisories/30949
• http://secunia.com/advisories/31005
• http://secunia.com/advisories/31008
• http://secunia.com/advisories/31021
• http://secunia.com/advisories/31023

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