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.
CVE-2012-4218 (firefox, linux_enterprise_desktop, linux_enterprise_server, linux_enterprise_software_development_kit, opensuse, seamonkey, thunderbird, ubuntu_linux)
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