CVE-2012-5840
Critical
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.
SeverityCritical
CVSS9.3
Exploit probability—
Product
Mozilla Firefox
PublishedNov 21, 2012
First seenNov 21, 2012
How to fix
Update
- mozilla firefox10.0.11, 17.0 or later
- mozilla seamonkey2.14 or later
- mozilla thunderbird17.0 or later
- mozilla thunderbird_esr10.0.11 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| mozilla firefox | v < 10.0.11, v < 17.0 | 10.0.11, 17.0 |
| mozilla seamonkey | v < 2.14 | 2.14 |
| mozilla thunderbird | v < 17.0 | 17.0 |
| mozilla thunderbird_esr | v < 10.0.11 | 10.0.11 |
| opensuse opensuse | 11.4, 12.1, 12.2 | — |
| suse linux_enterprise_desktop | 10, 11 | — |
| suse linux_enterprise_server | 10, 11 | — |
| suse linux_enterprise_software_development_kit | 10, 11 | — |
| canonical ubuntu_linux | 10.04, 11.10, 12.04, 12.10 | — |
| redhat enterprise_linux_desktop | 5.0, 6.0 | — |
| redhat enterprise_linux_eus | 6.3 | — |
| redhat enterprise_linux_server | 5.0, 6.0 | — |
| redhat enterprise_linux_workstation | 5.0, 6.0 | — |
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