Mozilla: Use-after-free and buffer overflow issues found using Address Sanitizer (MFSA 2012-105)
Published Nov 21, 2012
10.0
HIGHCVSS 2.0
EPSS 5.61%
Description
Use-after-free vulnerability in the BuildTextRunsScanner::BreakSink::SetBreaks function in Mozilla Firefox before 17.0, Thunderbird before 17.0, and SeaMonkey before 2.14 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via unspecified vectors.
Affected products
No data.
Configuration 1
Configuration 2
- 10.04
- 11.10
- 12.04
- 12.10
Configuration 3
- 11.4
- 12.1
- 12.2
- 10
- 11
- 10
- 11
- 11
- 11
- 11
No data.
Red Hat Enterprise Linux 5
firefox
Not affected
Red Hat Enterprise Linux 5
thunderbird
Not affected
Red Hat Enterprise Linux 6
firefox
Not affected
Red Hat Enterprise Linux 6
thunderbird
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | firefox | Not affected | n/a |
| Red Hat Enterprise Linux 5 | thunderbird | Not affected | n/a |
| Red Hat Enterprise Linux 6 | firefox | Not affected | n/a |
| Red Hat Enterprise Linux 6 | thunderbird | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue does not affect the version of firefox and thunderbird as shipped with Red Hat Enterprise Linux 5 and 6
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:L/Au:N/C:C/I:C/A:C
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 (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 5.61% (0.05613) | 92.68th | v5 (v2026.06.15) |
| Jun 15, 2026 | 5.61% (0.05613) | 91.90th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.55% (0.01553) | 79.72th | v4 (v2025.03.14) |
| Mar 29, 2025 | 3.52% (0.03517) | 79.16th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.62% (0.01617) | 80.53th | v4 (v2025.03.14) |
| Dec 17, 2024 | 5.60% (0.05601) | 93.17th | v3 (v2023.03.01) |
| Dec 10, 2024 | 14.10% (0.14102) | 95.89th | v3 (v2023.03.01) |
| Oct 17, 2024 | 10.62% (0.10615) | 95.19th | v3 (v2023.03.01) |
| Jun 21, 2024 | 6.76% (0.06762) | 93.89th | v3 (v2023.03.01) |
| Apr 18, 2024 | 4.49% (0.04486) | 92.34th | v3 (v2023.03.01) |
| Mar 7, 2023 | 3.90% (0.03898) | 90.57th | v3 (v2023.03.01) |
| Mar 6, 2023 | 8.23% (0.08228) | 93.49th | v2 (v2022.01.01) |
| Apr 1, 2022 | 8.23% (0.08228) | 92.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 8.23% (0.08228) | 82.23th | v2 (v2022.01.01) |
References (23)
- http://lists.opensuse.org/opensuse-security-announce/2012-11/msg00021.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2013-01/msg00022.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-updates/2012-11/msg00090.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-updates/2012-11/msg00092.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-updates/2012-11/msg00093.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://secunia.com/advisories/51369 third-party-advisoryx_refsource_SECUNIABroken Link
- http://secunia.com/advisories/51370 third-party-advisoryx_refsource_SECUNIABroken Link
- http://secunia.com/advisories/51381 third-party-advisoryx_refsource_SECUNIABroken Link
- http://secunia.com/advisories/51434 third-party-advisoryx_refsource_SECUNIABroken Link
- http://secunia.com/advisories/51439 third-party-advisoryx_refsource_SECUNIABroken Link
- http://secunia.com/advisories/51440 third-party-advisoryx_refsource_SECUNIABroken Link
- http://www.mozilla.org/security/announce/2012/mfsa2012-105.html x_refsource_CONFIRMVendor Advisory
- http://www.securityfocus.com/bid/56640 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/USN-1636-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.ubuntu.com/usn/USN-1638-1 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.ubuntu.com/usn/USN-1638-2 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- http://www.ubuntu.com/usn/USN-1638-3 vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2012-4218 Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=767765 x_refsource_CONFIRMIssue TrackingVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=877942 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2012-4218
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16885 vdb-entrysignaturex_refsource_OVALThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2012-4218
Change history (0)
No recorded changes yet.