Mozilla: Chrome Object Wrapper (COW) does not disallow acces to privileged functions or properties (MFSA 2012-83)
Published Oct 10, 2012
4.3
MEDIUMCVSS 2.0
EPSS 1.80%
Description
The Chrome Object Wrapper (COW) implementation in Mozilla Firefox before 16.0, Firefox ESR 10.x before 10.0.8, Thunderbird before 16.0, Thunderbird ESR 10.x before 10.0.8, and SeaMonkey before 2.13 does not prevent access to properties of a prototype for a standard class, which allows remote attackers to execute arbitrary JavaScript code with chrome privileges via a crafted web site.
Affected products
No data.
Configuration 2
- < 10.0.8
Configuration 4
- < 16.0
Configuration 6
- 10.04
- 11.04
- 11.10
- 12.04
- 5.0
- 6.0
- 6.3
- 5.0
- 6.0
- 5.0
- 6.0
Configuration 7
- 10
- 11
- 10
- 10
- 11
- 11
No data.
Red Hat Enterprise Linux 5
firefox-0:10.0.8-1.el5_8
Fixed · RHSA-2012:1350
Red Hat Enterprise Linux 5
thunderbird-0:10.0.8-1.el5_8
Fixed · RHSA-2012:1351
Red Hat Enterprise Linux 5
xulrunner-0:10.0.8-1.el5_8
Fixed · RHSA-2012:1350
Red Hat Enterprise Linux 6
firefox-0:10.0.8-1.el6_3
Fixed · RHSA-2012:1350
Red Hat Enterprise Linux 6
thunderbird-0:10.0.8-1.el6_3
Fixed · RHSA-2012:1351
Red Hat Enterprise Linux 6
xulrunner-0:10.0.8-1.el6_3
Fixed · RHSA-2012:1350
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | firefox-0:10.0.8-1.el5_8 | Fixed | RHSA-2012:1350 |
| Red Hat Enterprise Linux 5 | thunderbird-0:10.0.8-1.el5_8 | Fixed | RHSA-2012:1351 |
| Red Hat Enterprise Linux 5 | xulrunner-0:10.0.8-1.el5_8 | Fixed | RHSA-2012:1350 |
| Red Hat Enterprise Linux 6 | firefox-0:10.0.8-1.el6_3 | Fixed | RHSA-2012:1350 |
| Red Hat Enterprise Linux 6 | thunderbird-0:10.0.8-1.el6_3 | Fixed | RHSA-2012:1351 |
| Red Hat Enterprise Linux 6 | xulrunner-0:10.0.8-1.el6_3 | Fixed | RHSA-2012:1350 |
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 (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.80% (0.01802) | 77.71th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.80% (0.01802) | 75.60th | v5 (v2026.06.15) |
| Mar 17, 2025 | 1.10% (0.01102) | 76.53th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.33% (0.00328) | 71.77th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.33% (0.00328) | 70.10th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.33% (0.00328) | 66.23th | 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/2012-10/msg00010.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://osvdb.org/86113 vdb-entryx_refsource_OSVDBBroken Link
- http://rhn.redhat.com/errata/RHSA-2012-1351.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://secunia.com/advisories/50892 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/50904 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/50984 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/55318 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:163 vendor-advisoryx_refsource_MANDRIVAThird Party Advisory
- http://www.mozilla.org/security/announce/2012/mfsa2012-83.html x_refsource_CONFIRMVendor Advisory
- http://www.securityfocus.com/bid/56120 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/USN-1611-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2012-4184 Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=780370 x_refsource_CONFIRMIssue TrackingVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=863623 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/79154 vdb-entryx_refsource_XFThird Party AdvisoryVDB Entry
- https://nvd.nist.gov/vuln/detail/CVE-2012-4184
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16946 vdb-entrysignaturex_refsource_OVALThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2012-4184
Change history (0)
No recorded changes yet.