What’s Vulnerable › Vulnerabilities

CVE-2011-3000

• Severity: medium (CVSS 4.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2011-09-29 · updated 2026-06-16
• Weakness: CWE-94

Description

Mozilla Firefox before 3.6.23 and 4.x through 6, Thunderbird before 7.0, and SeaMonkey before 2.4 do not properly handle HTTP responses that contain multiple Location, Content-Length, or Content-Disposition headers, which makes it easier for remote attackers to conduct HTTP response splitting attacks via crafted header values.

Affected products

• Mozilla Firefox: through 3.6.22; 3.6, 3.6.2, 3.6.3, 3.6.4, 3.6.6, 3.6.7 (+30)
• Mozilla Seamonkey: through 2.3.3; 1.0, 1.0-alpha, 1.0-beta, 1.0.1, 1.0.2, 1.0.3 (+60)
• Mozilla Thunderbird: through 6.0.2; 0.1, 0.2, 0.3, 0.4, 0.5, 0.6 (+93)

References

• http://lists.opensuse.org/opensuse-security-announce/2011-11/msg00020.html
• http://lists.opensuse.org/opensuse-updates/2011-10/msg00002.html
• http://secunia.com/advisories/46315
• http://www.debian.org/security/2011/dsa-2312
• http://www.debian.org/security/2011/dsa-2313
• http://www.debian.org/security/2011/dsa-2317
• http://www.mandriva.com/security/advisories?name=MDVSA-2011:139
• http://www.mandriva.com/security/advisories?name=MDVSA-2011:140
• http://www.mandriva.com/security/advisories?name=MDVSA-2011:141
• http://www.mandriva.com/security/advisories?name=MDVSA-2011:142
• http://www.mozilla.org/security/announce/2011/mfsa2011-39.html
• http://www.redhat.com/support/errata/RHSA-2011-1341.html

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