CVE-2012-3978
The nsLocation::CheckURL function in Mozilla Firefox before 15.0, Firefox ESR 10.x before 10.0.7,...
6.8 Medium
CVE-2012-3978 is a medium vulnerability (CVSS 6.8) in Mozilla Firefox, published August 29, 2012. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.30%, the 83rd percentile. No source names a fixed version.
- Severity
- 6.8 MediumCVSS 2.0, NVD
- Exploit chance
- 2.30%EPSS, 83rd percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
- No fix listedNo source names one
Description
The nsLocation::CheckURL function in Mozilla Firefox before 15.0, Firefox ESR 10.x before 10.0.7, Thunderbird before 15.0, Thunderbird ESR 10.x before 10.0.7, and SeaMonkey before 2.12 does not properly follow the security model of the location object, which allows remote attackers to bypass intended content-loading restrictions or possibly have unspecified other impact via vectors involving chrome code.
Exploit likelihood
2.30%Down 1.1 points since Feb 4, 2022
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
iceweaselDebian:6.0 From an advisory covering 11 CVEs | before 3.5.16-18, plus listed versions 3.5.16-103.5.16-10~bpo50+13.5.16-113.5.16-11~bpo50+13.5.16-12 Show 15 moreShow less3.5.16-133.5.16-143.5.16-153.5.16-163.5.16-173.5.16-43.5.16-53.5.16-5~bpo50+13.5.16-63.5.16-6~bpo50+13.5.16-73.5.16-7~bpo50+13.5.16-83.5.16-8~bpo50+13.5.16-9 | 3.5.16-18 |
iceapeDebian:6.0 From an advisory covering 11 CVEs | before 2.0.11-15, plus listed versions 2.0.11-102.0.11-112.0.11-122.0.11-132.0.11-14 Show 8 moreShow less2.0.11-22.0.11-32.0.11-42.0.11-52.0.11-62.0.11-72.0.11-82.0.11-9 | 2.0.11-15 |
icedoveDebian:6.0 From an advisory covering 11 CVEs | before 3.0.11-1+squeeze13, plus listed versions 3.0.11-13.0.11-1+squeeze13.0.11-1+squeeze103.0.11-1+squeeze113.0.11-1+squeeze12 Show 8 moreShow less3.0.11-1+squeeze23.0.11-1+squeeze33.0.11-1+squeeze43.0.11-1+squeeze53.0.11-1+squeeze63.0.11-1+squeeze73.0.11-1+squeeze83.0.11-1+squeeze9 | 3.0.11-1+squeeze13 |
firefoxRed Hat:enterprise_linux:5::client From an advisory covering 24 CVEs | before 0:10.0.7-1.el5_8 | 0:10.0.7-1.el5_8 |
firefox-debuginfoRed Hat:enterprise_linux:5::client From an advisory covering 24 CVEs | before 0:10.0.7-1.el5_8 | 0:10.0.7-1.el5_8 |
xulrunnerRed Hat:enterprise_linux:5::client From an advisory covering 24 CVEs | before 0:10.0.7-2.el5_8 | 0:10.0.7-2.el5_8 |
xulrunner-debuginfoRed Hat:enterprise_linux:5::client From an advisory covering 24 CVEs | before 0:10.0.7-2.el5_8 | 0:10.0.7-2.el5_8 |
xulrunnerRed Hat:enterprise_linux:5::client_workstation From an advisory covering 24 CVEs | before 0:10.0.7-2.el5_8 | 0:10.0.7-2.el5_8 |
xulrunner-debuginfoRed Hat:enterprise_linux:5::client_workstation From an advisory covering 24 CVEs | before 0:10.0.7-2.el5_8 | 0:10.0.7-2.el5_8 |
xulrunner-develRed Hat:enterprise_linux:5::client_workstation From an advisory covering 24 CVEs | before 0:10.0.7-2.el5_8 | 0:10.0.7-2.el5_8 |
Show 38 moreShow less
| Package | Affected | Fixed |
|---|---|---|
firefoxRed Hat:enterprise_linux:5::server From an advisory covering 24 CVEs | before 0:10.0.7-1.el5_8 | 0:10.0.7-1.el5_8 |
firefox-debuginfoRed Hat:enterprise_linux:5::server From an advisory covering 24 CVEs | before 0:10.0.7-1.el5_8 | 0:10.0.7-1.el5_8 |
xulrunnerRed Hat:enterprise_linux:5::server From an advisory covering 24 CVEs | before 0:10.0.7-2.el5_8 | 0:10.0.7-2.el5_8 |
xulrunner-debuginfoRed Hat:enterprise_linux:5::server From an advisory covering 24 CVEs | before 0:10.0.7-2.el5_8 | 0:10.0.7-2.el5_8 |
xulrunner-develRed Hat:enterprise_linux:5::server From an advisory covering 24 CVEs | before 0:10.0.7-2.el5_8 | 0:10.0.7-2.el5_8 |
firefoxRed Hat:enterprise_linux:6::client From an advisory covering 24 CVEs | before 0:10.0.7-1.el6_3 | 0:10.0.7-1.el6_3 |
firefox-debuginfoRed Hat:enterprise_linux:6::client From an advisory covering 24 CVEs | before 0:10.0.7-1.el6_3 | 0:10.0.7-1.el6_3 |
xulrunnerRed Hat:enterprise_linux:6::client From an advisory covering 24 CVEs | before 0:10.0.7-1.el6_3 | 0:10.0.7-1.el6_3 |
xulrunner-debuginfoRed Hat:enterprise_linux:6::client From an advisory covering 24 CVEs | before 0:10.0.7-1.el6_3 | 0:10.0.7-1.el6_3 |
xulrunner-develRed Hat:enterprise_linux:6::client From an advisory covering 24 CVEs | before 0:10.0.7-1.el6_3 | 0:10.0.7-1.el6_3 |
firefoxRed Hat:enterprise_linux:6::computenode From an advisory covering 24 CVEs | before 0:10.0.7-1.el6_3 | 0:10.0.7-1.el6_3 |
firefox-debuginfoRed Hat:enterprise_linux:6::computenode From an advisory covering 24 CVEs | before 0:10.0.7-1.el6_3 | 0:10.0.7-1.el6_3 |
xulrunnerRed Hat:enterprise_linux:6::computenode From an advisory covering 24 CVEs | before 0:10.0.7-1.el6_3 | 0:10.0.7-1.el6_3 |
xulrunner-debuginfoRed Hat:enterprise_linux:6::computenode From an advisory covering 24 CVEs | before 0:10.0.7-1.el6_3 | 0:10.0.7-1.el6_3 |
xulrunner-develRed Hat:enterprise_linux:6::computenode From an advisory covering 24 CVEs | before 0:10.0.7-1.el6_3 | 0:10.0.7-1.el6_3 |
firefoxRed Hat:enterprise_linux:6::server From an advisory covering 24 CVEs | before 0:10.0.7-1.el6_3 | 0:10.0.7-1.el6_3 |
firefox-debuginfoRed Hat:enterprise_linux:6::server From an advisory covering 24 CVEs | before 0:10.0.7-1.el6_3 | 0:10.0.7-1.el6_3 |
xulrunnerRed Hat:enterprise_linux:6::server From an advisory covering 24 CVEs | before 0:10.0.7-1.el6_3 | 0:10.0.7-1.el6_3 |
xulrunner-debuginfoRed Hat:enterprise_linux:6::server From an advisory covering 24 CVEs | before 0:10.0.7-1.el6_3 | 0:10.0.7-1.el6_3 |
xulrunner-develRed Hat:enterprise_linux:6::server From an advisory covering 24 CVEs | before 0:10.0.7-1.el6_3 | 0:10.0.7-1.el6_3 |
firefoxRed Hat:enterprise_linux:6::workstation From an advisory covering 24 CVEs | before 0:10.0.7-1.el6_3 | 0:10.0.7-1.el6_3 |
firefox-debuginfoRed Hat:enterprise_linux:6::workstation From an advisory covering 24 CVEs | before 0:10.0.7-1.el6_3 | 0:10.0.7-1.el6_3 |
xulrunnerRed Hat:enterprise_linux:6::workstation From an advisory covering 24 CVEs | before 0:10.0.7-1.el6_3 | 0:10.0.7-1.el6_3 |
xulrunner-debuginfoRed Hat:enterprise_linux:6::workstation From an advisory covering 24 CVEs | before 0:10.0.7-1.el6_3 | 0:10.0.7-1.el6_3 |
xulrunner-develRed Hat:enterprise_linux:6::workstation From an advisory covering 24 CVEs | before 0:10.0.7-1.el6_3 | 0:10.0.7-1.el6_3 |
thunderbirdRed Hat:enterprise_linux:5::client From an advisory covering 23 CVEs | before 0:10.0.7-1.el5_8 | 0:10.0.7-1.el5_8 |
thunderbird-debuginfoRed Hat:enterprise_linux:5::client From an advisory covering 23 CVEs | before 0:10.0.7-1.el5_8 | 0:10.0.7-1.el5_8 |
thunderbirdRed Hat:rhel_productivity:5 From an advisory covering 23 CVEs | before 0:10.0.7-1.el5_8 | 0:10.0.7-1.el5_8 |
thunderbird-debuginfoRed Hat:rhel_productivity:5 From an advisory covering 23 CVEs | before 0:10.0.7-1.el5_8 | 0:10.0.7-1.el5_8 |
thunderbirdRed Hat:enterprise_linux:6::client From an advisory covering 23 CVEs | before 0:10.0.7-1.el6_3 | 0:10.0.7-1.el6_3 |
thunderbird-debuginfoRed Hat:enterprise_linux:6::client From an advisory covering 23 CVEs | before 0:10.0.7-1.el6_3 | 0:10.0.7-1.el6_3 |
thunderbirdRed Hat:enterprise_linux:6::server From an advisory covering 23 CVEs | before 0:10.0.7-1.el6_3 | 0:10.0.7-1.el6_3 |
thunderbird-debuginfoRed Hat:enterprise_linux:6::server From an advisory covering 23 CVEs | before 0:10.0.7-1.el6_3 | 0:10.0.7-1.el6_3 |
thunderbirdRed Hat:enterprise_linux:6::workstation From an advisory covering 23 CVEs | before 0:10.0.7-1.el6_3 | 0:10.0.7-1.el6_3 |
thunderbird-debuginfoRed Hat:enterprise_linux:6::workstation From an advisory covering 23 CVEs | before 0:10.0.7-1.el6_3 | 0:10.0.7-1.el6_3 |
MozillaFirefoxopenSUSE:Tumbleweed From an advisory covering 899 CVEs | before 50.1.0-1.1 | 50.1.0-1.1 |
MozillaThunderbirdopenSUSE:Tumbleweed From an advisory covering 560 CVEs | before 45.5.1-1.1 | 45.5.1-1.1 |
firefox-esropenSUSE:Tumbleweed From an advisory covering 1860 CVEs | before 128.5.1-1.1 | 128.5.1-1.1 |
What each source reports
NVD Score used
The nsLocation::CheckURL function in Mozilla Firefox before 15.0, Firefox ESR 10.x before 10.0.7, Thunderbird before 15.0, Thunderbird ESR 10.x before 10.0.7, and SeaMonkey before 2.12 does not properly follow the security model of the location object, which allows remote attackers to bypass intended content-loading restrictions or possibly have unspecified other impact via vectors involving chrome code.
- Record
CVE-2012-3978- CVSS 2.0
- 6.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:P - Weakness
- CWE-264
- Updated
- 2026-11-02
CVE ListNo score
The nsLocation::CheckURL function in Mozilla Firefox before 15.0, Firefox ESR 10.x before 10.0.7, Thunderbird before 15.0, Thunderbird ESR 10.x before 10.0.7, and SeaMonkey before 2.12 does not properly follow the security model of the location object, which allows remote attackers to bypass intended content-loading restrictions or possibly have unspecified other impact via vectors involving chrome code.
- Record
CVE-2012-3978- Updated
- 2026-11-02
EUVDEUVD-2012-3922No score
The nsLocation::CheckURL function in Mozilla Firefox before 15.0, Firefox ESR 10.x before 10.0.7, Thunderbird before 15.0, Thunderbird ESR 10.x before 10.0.7, and SeaMonkey before 2.12 does not properly follow the security model of the location object, which allows remote attackers to bypass intended content-loading restrictions or possibly have unspecified other impact via vectors involving chrome code.
- Record
EUVD-2012-3922- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-rj2q-vc79-g8v7No score
The nsLocation::CheckURL function in Mozilla Firefox before 15.0, Firefox ESR 10.x before 10.0.7,...
The nsLocation::CheckURL function in Mozilla Firefox before 15.0, Firefox ESR 10.x before 10.0.7, Thunderbird before 15.0, Thunderbird ESR 10.x before 10.0.7, and SeaMonkey before 2.12 does not properly follow the security model of the location object, which allows remote attackers to bypass intended content-loading restrictions or possibly have unspecified other impact via vectors involving chrome code.
- Record
GHSA-rj2q-vc79-g8v7- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:10071-1No score
MozillaFirefox-50.1.0-1.1 on GA media
These are all security issues fixed in the MozillaFirefox-50.1.0-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:10071-1- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:10218-1No score
seamonkey-2.40-6.1 on GA media
These are all security issues fixed in the seamonkey-2.40-6.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:10218-1- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:10230-1No score
MozillaThunderbird-45.5.1-1.1 on GA media
These are all security issues fixed in the MozillaThunderbird-45.5.1-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:10230-1- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:14572-1No score
firefox-esr-128.5.1-1.1 on GA media
These are all security issues fixed in the firefox-esr-128.5.1-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:14572-1- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
References
bugzilla.mozilla.org/show_bug.cgi?id=770429
debian.org/security/2012/dsa-2556
mozilla.org/security/announce/2012/mfsa2012-70.html
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16923
rhn.redhat.com/errata/RHSA-2012-1211.html
Show 194 moreShow less
ubuntu.com/usn/USN-1548-1
securityfocus.com/bid/55306
lists.opensuse.org/opensuse-security-announce/2012-09/msg00014.html
xerox.com/download/security/security-bulletin/16287-4d6b7b0c81f7b/cert_XRX13-003_v1.0.pdf
nvd.nist.gov/vuln/detail/CVE-2012-3978
github.com/advisories/GHSA-rj2q-vc79-g8v7
access.redhat.com/errata/RHSA-2012:1210
bugzilla.redhat.com/show_bug.cgi?id=851909
security.access.redhat.com/data/csaf/v2/advisories/2012/rhsa-2012_1210.json
cve.org/CVERecord?id=CVE-2012-1970
suse.com/security/cve/CVE-2008-5913
This page doesn't list everything
Left out here: 2,003 references. The JSON record has them.