Mozilla: Defense against multiple Location headers due to CRLF Injection (MFSA 2011-39)
Published Sep 29, 2011
4.3
MEDIUMCVSS 2.0
EPSS 2.02%
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
No data.
Configuration 1
- ≤ 3.6.22
- 3.6
- 3.6.2
- 3.6.3
- 3.6.4
- 3.6.6
- 3.6.7
- 3.6.8
- 3.6.9
- 3.6.10
- 3.6.11
- 3.6.12
- 3.6.13
- 3.6.14
- 3.6.15
- 3.6.16
- 3.6.17
- 3.6.18
- 3.6.19
- 3.6.20
- 3.6.21
Configuration 2
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0
- 4.0.1
- 5.0
- 6.0
Configuration 3
- ≤ 6.0.2
- 0.1
- 0.2
- 0.3
- 0.4
- 0.5
- 0.6
- 0.7
- 0.7.1
- 0.7.2
- 0.7.3
- 0.8
- 0.9
- 1.0
- 1.0.1
- 1.0.2
- 1.0.3
- 1.0.4
- 1.0.5
- 1.0.5
- 1.0.6
- 1.0.7
- 1.0.8
- 1.5
- 1.5
- 1.5.0.1
- 1.5.0.2
- 1.5.0.3
- 1.5.0.4
- 1.5.0.5
- 1.5.0.6
- 1.5.0.7
- 1.5.0.8
- 1.5.0.9
- 1.5.0.10
- 1.5.0.11
- 1.5.0.12
- 1.5.0.13
- 1.5.0.14
- 1.5.1
- 1.5.2
- 1.7.1
- 1.7.3
- 2.0
- 2.0.0.0
- 2.0.0.1
- 2.0.0.2
- 2.0.0.3
- 2.0.0.4
- 2.0.0.5
- 2.0.0.6
- 2.0.0.7
- 2.0.0.8
- 2.0.0.9
- 2.0.0.11
- 2.0.0.12
- 2.0.0.13
- 2.0.0.14
- 2.0.0.15
- 2.0.0.16
- 2.0.0.17
- 2.0.0.18
- 2.0.0.19
- 2.0.0.20
- 2.0.0.21
- 2.0.0.22
- 2.0.0.23
- 2.0_.4
- 2.0_.5
- 2.0_.6
- 2.0_.9
- 2.0_.12
- 2.0_.13
- 2.0_.14
- 2.0_8
- 3.0
- 3.0.1
- 3.0.2
- 3.0.3
- 3.0.4
- 3.0.5
- 3.0.6
- 3.0.7
- 3.0.8
- 3.0.9
- 3.0.10
- 3.0.11
- 3.1
- 3.1.1
- 3.1.2
- 3.1.3
- 3.1.4
- 3.1.5
- 3.1.6
- 3.1.7
- 3.1.8
- 3.1.9
- 3.1.10
- 3.1.11
- 5.0
Configuration 4
- ≤ 2.3.3
- 1.0
- 1.0
- 1.0
- 1.0
- 1.0
- 1.0
- 1.0.1
- 1.0.2
- 1.0.3
- 1.0.4
- 1.0.5
- 1.0.6
- 1.0.7
- 1.0.8
- 1.0.9
- 1.0.99
- 1.1
- 1.1
- 1.1
- 1.1.1
- 1.1.2
- 1.1.3
- 1.1.4
- 1.1.5
- 1.1.5
- 1.1.6
- 1.1.7
- 1.1.8
- 1.1.9
- 1.1.10
- 1.1.11
- 1.1.12
- 1.1.13
- 1.1.14
- 1.1.15
- 1.1.16
- 1.1.17
- 1.1.18
- 1.1.19
- 1.5.0.8
- 1.5.0.9
- 1.5.0.10
- 2.0
- 2.0
- 2.0
- 2.0
- 2.0
- 2.0
- 2.0
- 2.0
- 2.0.1
- 2.0.2
- 2.0.3
- 2.0.4
- 2.0.5
- 2.0.6
- 2.0.7
- 2.0.8
- 2.0.9
- 2.0.10
- 2.0.11
- 2.0.12
- 2.0.13
- 2.0.14
- 2.0a1
- 2.0a1pre
- 2.1
- 2.1
- 2.1
No data.
Red Hat Enterprise Linux 4
firefox-0:3.6.23-1.el4
Fixed · RHSA-2011:1341
Red Hat Enterprise Linux 5
firefox-0:3.6.23-2.el5_7
Fixed · RHSA-2011:1341
Red Hat Enterprise Linux 5
xulrunner-0:1.9.2.23-1.el5_7
Fixed · RHSA-2011:1341
Red Hat Enterprise Linux 6
firefox-0:3.6.23-2.el6_1
Fixed · RHSA-2011:1341
Red Hat Enterprise Linux 6
thunderbird-0:3.1.15-1.el6_1
Fixed · RHSA-2011:1342
Red Hat Enterprise Linux 6
xulrunner-0:1.9.2.23-1.el6_1.1
Fixed · RHSA-2011:1341
Red Hat Enterprise Linux 4
seamonkey
Affected
Red Hat Enterprise Linux 4
thunderbird
Affected
Red Hat Enterprise Linux 5
thunderbird
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 4 | firefox-0:3.6.23-1.el4 | Fixed | RHSA-2011:1341 |
| Red Hat Enterprise Linux 5 | firefox-0:3.6.23-2.el5_7 | Fixed | RHSA-2011:1341 |
| Red Hat Enterprise Linux 5 | xulrunner-0:1.9.2.23-1.el5_7 | Fixed | RHSA-2011:1341 |
| Red Hat Enterprise Linux 6 | firefox-0:3.6.23-2.el6_1 | Fixed | RHSA-2011:1341 |
| Red Hat Enterprise Linux 6 | thunderbird-0:3.1.15-1.el6_1 | Fixed | RHSA-2011:1342 |
| Red Hat Enterprise Linux 6 | xulrunner-0:1.9.2.23-1.el6_1.1 | Fixed | RHSA-2011:1341 |
| Red Hat Enterprise Linux 4 | seamonkey | Affected | n/a |
| Red Hat Enterprise Linux 4 | thunderbird | Affected | n/a |
| Red Hat Enterprise Linux 5 | thunderbird | Affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:N/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.02% (0.02018) | 80.21th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.02% (0.02018) | 78.32th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.30% (0.01301) | 77.90th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.92% (0.03918) | 80.20th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.96% (0.00964) | 74.98th | v4 (v2025.03.14) |
| Dec 12, 2024 | 20.11% (0.20105) | 96.53th | v3 (v2023.03.01) |
| Apr 28, 2023 | 20.11% (0.20105) | 95.58th | v3 (v2023.03.01) |
| Mar 7, 2023 | 25.95% (0.25945) | 95.94th | v3 (v2023.03.01) |
| Mar 6, 2023 | 3.41% (0.03407) | 84.65th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.41% (0.03407) | 83.10th | v2 (v2022.01.01) |
| Feb 4, 2022 | 3.41% (0.03407) | 66.20th | v2 (v2022.01.01) |
References (18)
- http://lists.opensuse.org/opensuse-security-announce/2011-11/msg00020.html vendor-advisoryx_refsource_SUSE
- http://lists.opensuse.org/opensuse-updates/2011-10/msg00002.html vendor-advisoryx_refsource_SUSE
- http://secunia.com/advisories/46315 third-party-advisoryx_refsource_SECUNIA
- http://www.debian.org/security/2011/dsa-2312 vendor-advisoryx_refsource_DEBIAN
- http://www.debian.org/security/2011/dsa-2313 vendor-advisoryx_refsource_DEBIAN
- http://www.debian.org/security/2011/dsa-2317 vendor-advisoryx_refsource_DEBIAN
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:139 vendor-advisoryx_refsource_MANDRIVA
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:140 vendor-advisoryx_refsource_MANDRIVA
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:141 vendor-advisoryx_refsource_MANDRIVA
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:142 vendor-advisoryx_refsource_MANDRIVA
- http://www.mozilla.org/security/announce/2011/mfsa2011-39.html x_refsource_CONFIRMVendor Advisory
- http://www.redhat.com/support/errata/RHSA-2011-1341.html vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2011-3000 Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=655389 x_refsource_CONFIRM
- https://bugzilla.redhat.com/show_bug.cgi?id=741905 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2011-3000
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14361 vdb-entrysignaturex_refsource_OVAL
- https://www.cve.org/CVERecord?id=CVE-2011-3000
Change history (0)
No recorded changes yet.