HIGH
Mozilla: Use-after-free and buffer overflow issues found using Address Sanitizer (MFSA 2012-105)
Published Nov 21, 2012
9.3
HIGHCVSS 2.0
EPSS 6.07%
Description
Use-after-free vulnerability in the nsTextEditorState::PrepareEditor function in Mozilla Firefox before 17.0, Firefox ESR 10.x before 10.0.11, Thunderbird before 17.0, Thunderbird ESR 10.x before 10.0.11, and SeaMonkey before 2.14 allows remote attackers to execute arbitrary code or cause a denial of service (heap memory corruption) via unspecified vectors, a different vulnerability than CVE-2012-4214.
Affected products
No data.
Configuration 1
OR
- < 10.0.11
- < 17.0
- < 2.14
- < 17.0
- < 10.0.11
Configuration 2
OR
- 11.4
- 12.1
- 12.2
- 10
- 11
- 10
- 11
- 11
- 10
- 11
Configuration 3
OR
- 10.04
- 11.10
- 12.04
- 12.10
Configuration 4
OR
- 5.0
- 6.0
- 6.3
- 5.0
- 6.0
- 5.0
- 6.0
No data.
Red Hat Enterprise Linux 5
firefox-0:10.0.11-1.el5_8
Fixed · RHSA-2012:1482
Red Hat Enterprise Linux 5
thunderbird-0:10.0.11-1.el5_8
Fixed · RHSA-2012:1483
Red Hat Enterprise Linux 5
xulrunner-0:10.0.11-1.el5_8
Fixed · RHSA-2012:1482
Red Hat Enterprise Linux 6
firefox-0:10.0.11-1.el6_3
Fixed · RHSA-2012:1482
Red Hat Enterprise Linux 6
thunderbird-0:10.0.11-1.el6_3
Fixed · RHSA-2012:1483
Red Hat Enterprise Linux 6
xulrunner-0:10.0.11-1.el6_3
Fixed · RHSA-2012:1482
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | firefox-0:10.0.11-1.el5_8 | Fixed | RHSA-2012:1482 |
| Red Hat Enterprise Linux 5 | thunderbird-0:10.0.11-1.el5_8 | Fixed | RHSA-2012:1483 |
| Red Hat Enterprise Linux 5 | xulrunner-0:10.0.11-1.el5_8 | Fixed | RHSA-2012:1482 |
| Red Hat Enterprise Linux 6 | firefox-0:10.0.11-1.el6_3 | Fixed | RHSA-2012:1482 |
| Red Hat Enterprise Linux 6 | thunderbird-0:10.0.11-1.el6_3 | Fixed | RHSA-2012:1483 |
| Red Hat Enterprise Linux 6 | xulrunner-0:10.0.11-1.el6_3 | Fixed | RHSA-2012:1482 |
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.
9.3 HIGH NVD
AV:N/AC:M/Au:N/C:C/I:C/A:C
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
6.07% 0.06074
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.06074
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 | 6.07% (0.06074) | 93.18th | v5 (v2026.06.15) |
| Jun 15, 2026 | 6.07% (0.06074) | 92.44th | v5 (v2026.06.15) |
| Jan 9, 2026 | 2.34% (0.02337) | 84.42th | v4 (v2025.03.14) |
| May 25, 2025 | 4.32% (0.04317) | 88.30th | v4 (v2025.03.14) |
| Mar 30, 2025 | 3.14% (0.03138) | 85.70th | v4 (v2025.03.14) |
| Mar 29, 2025 | 7.19% (0.07189) | 85.67th | v4 (v2025.03.14) |
| Mar 25, 2025 | 3.14% (0.03138) | 85.63th | v4 (v2025.03.14) |
| Mar 17, 2025 | 4.56% (0.04562) | 88.46th | v4 (v2025.03.14) |
| Dec 12, 2024 | 2.56% (0.02555) | 90.60th | v3 (v2023.03.01) |
| Apr 18, 2024 | 1.83% (0.01827) | 88.06th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.62% (0.01623) | 85.48th | v3 (v2023.03.01) |
| Mar 6, 2023 | 6.60% (0.06604) | 91.53th | v2 (v2022.01.01) |
| Apr 1, 2022 | 6.60% (0.06604) | 90.72th | v2 (v2022.01.01) |
| Feb 4, 2022 | 6.60% (0.06604) | 78.62th | v2 (v2022.01.01) |
Weaknesses (2)
References (31)
- 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://osvdb.org/87606 vdb-entryx_refsource_OSVDBBroken LinkThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2012-1482.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2012-1483.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://secunia.com/advisories/51359 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/51360 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/51369 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/51370 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/51381 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/51434 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/51439 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://secunia.com/advisories/51440 third-party-advisoryx_refsource_SECUNIAThird Party Advisory
- http://www.mandriva.com/security/advisories?name=MDVSA-2012:173 vendor-advisoryx_refsource_MANDRIVAThird Party Advisory
- http://www.mozilla.org/security/announce/2012/mfsa2012-105.html x_refsource_CONFIRMVendor Advisory
- http://www.palemoon.org/releasenotes-ng.shtml x_refsource_CONFIRMBroken Link
- http://www.securityfocus.com/bid/56635 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-2012-5840 Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=805287 x_refsource_CONFIRMExploitIssue TrackingPatchVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=877634 Issue Tracking
- https://exchange.xforce.ibmcloud.com/vulnerabilities/80190 vdb-entryx_refsource_XFThird Party AdvisoryVDB Entry
- https://nvd.nist.gov/vuln/detail/CVE-2012-5840
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16904 vdb-entrysignaturex_refsource_OVALThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2012-5840
| Link | Providers | Tags |
|---|---|---|
| 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://osvdb.org/87606 | vdb-entryx_refsource_OSVDBBroken LinkThird Party Advisory | |
| http://rhn.redhat.com/errata/RHSA-2012-1482.html | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| http://rhn.redhat.com/errata/RHSA-2012-1483.html | vendor-advisoryx_refsource_REDHATThird Party Advisory | |
| http://secunia.com/advisories/51359 | third-party-advisoryx_refsource_SECUNIAThird Party Advisory | |
| http://secunia.com/advisories/51360 | third-party-advisoryx_refsource_SECUNIAThird Party Advisory | |
| http://secunia.com/advisories/51369 | third-party-advisoryx_refsource_SECUNIAThird Party Advisory | |
| http://secunia.com/advisories/51370 | third-party-advisoryx_refsource_SECUNIAThird Party Advisory | |
| http://secunia.com/advisories/51381 | third-party-advisoryx_refsource_SECUNIAThird Party Advisory | |
| http://secunia.com/advisories/51434 | third-party-advisoryx_refsource_SECUNIAThird Party Advisory | |
| http://secunia.com/advisories/51439 | third-party-advisoryx_refsource_SECUNIAThird Party Advisory | |
| http://secunia.com/advisories/51440 | third-party-advisoryx_refsource_SECUNIAThird Party Advisory | |
| http://www.mandriva.com/security/advisories?name=MDVSA-2012:173 | vendor-advisoryx_refsource_MANDRIVAThird Party Advisory | |
| http://www.mozilla.org/security/announce/2012/mfsa2012-105.html | x_refsource_CONFIRMVendor Advisory | |
| http://www.palemoon.org/releasenotes-ng.shtml | x_refsource_CONFIRMBroken Link | |
| http://www.securityfocus.com/bid/56635 | 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-2012-5840 | Vendor Advisory | |
| https://bugzilla.mozilla.org/show_bug.cgi?id=805287 | x_refsource_CONFIRMExploitIssue TrackingPatchVendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=877634 | Issue Tracking | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/80190 | vdb-entryx_refsource_XFThird Party AdvisoryVDB Entry | |
| https://nvd.nist.gov/vuln/detail/CVE-2012-5840 | ||
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A16904 | vdb-entrysignaturex_refsource_OVALThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2012-5840 |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Nov 21, 2012
Updated Aug 6, 2024
Reserved Nov 5, 2012
Link CVE-2012-5840
CISA Vulnrichment
Updated n/a