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    CVE-2011-3000

    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.

    Published:Sep 28, 2011
    Last Modified:Apr 11, 2025
    EPS:Sep 29, 2011
    EPSS Score:0.01301
    CVSS Score:4.3

    Affected Products

    Vendor
    Mozilla
    Product
    Firefox
    Vendor
    Mozilla
    Product
    Seamonkey
    Vendor
    Mozilla
    Product
    Thunderbird
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    No exploit reference

    Related CVEs

    CVE-2026-84144 (CVSS 7.5) — Internally found bugs present in Thunderbird 154 and Thunderbird ESR 153.1. Some of these bugs showed evidence…
    CVE-2026-84143 (CVSS 9.8) — Internally found bugs present in Thunderbird 154, Thunderbird ESR 153.1 and Thunderbird ESR 140.14. Some of th…
    CVE-2026-84142 (CVSS 9.8) — Internally found bugs present in Thunderbird 154. Some of these bugs showed evidence of memory corruption or a…
    CVE-2026-84141 (CVSS 9.8) — Integer overflow in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 155, Firefox ESR…
    CVE-2026-84140 (CVSS 9.8) — Site isolation issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 155, Firefox ES…
    CVE-2026-84139 (CVSS 6.1) — Clickjacking issue in the DOM: Events component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.…
    CVE-2026-84138 (CVSS 6.5) — Denial-of-service in the PDF Viewer component. This vulnerability was fixed in Firefox 155 and Thunderbird 155…
    CVE-2026-84137 (CVSS 4.3) — Spoofing issue in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 155, Firefox ESR 153…
    CVE-2026-84136 (CVSS 6.1) — Other issue in the DOM: Navigation component. This vulnerability was fixed in Firefox 155, Firefox ESR 153.2, …
    CVE-2026-84135 (CVSS 9.8) — Other issue in Firefox Focus for Android. This vulnerability was fixed in Firefox 155.…

    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
    https://bugzilla.mozilla.org/show_bug.cgi?id=655389
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14361
    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
    https://bugzilla.mozilla.org/show_bug.cgi?id=655389
    https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14361

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High