Ubuntu Security Notice 1611-1 - Henrik Skupin, Jesse Ruderman, Christian Holler, Soroush Dalili and others discovered several memory corruption flaws in Thunderbird. If a user were tricked into opening a malicious website and had JavaScript enabled, an attacker could exploit these to execute arbitrary JavaScript code within the context of another website or arbitrary code as the user invoking the program. CVE-2012-4191) David Bloom and Jordi Chancel discovered that Thunderbird did not always properly handle the <select> element. If a user were tricked into opening a malicious website and had JavaScript enabled, a remote attacker could exploit this to conduct URL spoofing and clickjacking attacks. Various other issues were also addressed.
ac3e5de9ebdb73ec00e147e7680d9376d270bd2da91832b181c8f7c595d6f432Mandriva Linux Security Advisory 2012-163 - Mozilla developers identified and fixed several memory safety bugs in the browser engine used in Firefox and other Mozilla-based products. Some of these bugs showed evidence of memory corruption under certain circumstances, and it is presumed that with enough effort at least some of these could be exploited to run arbitrary code. Various other issues have been addressed. The mozilla firefox packages has been upgraded to the latest version which is unaffected by these security flaws.
154b32803b53a2ead7b39038e8b847ce03c2aa2876c9482c5b6e3142af4287ccRed Hat Security Advisory 2012-1350-01 - Mozilla Firefox is an open source web browser. XULRunner provides the XUL Runtime environment for Mozilla Firefox. Several flaws were found in the processing of malformed web content. A web page containing malicious content could cause Firefox to crash or, potentially, execute arbitrary code with the privileges of the user running Firefox. Two flaws in Firefox could allow a malicious website to bypass intended restrictions, possibly leading to information disclosure, or Firefox executing arbitrary code. Note that the information disclosure issue could possibly be combined with other flaws to achieve arbitrary code execution.
c8d7292c8a6e60864621280d45d831aa43f4c5b9661f6df6ad09a301b22438f6Red Hat Security Advisory 2012-1351-01 - Mozilla Thunderbird is a standalone mail and newsgroup client. Several flaws were found in the processing of malformed content. Malicious content could cause Thunderbird to crash or, potentially, execute arbitrary code with the privileges of the user running Thunderbird. Two flaws in Thunderbird could allow malicious content to bypass intended restrictions, possibly leading to information disclosure, or Thunderbird executing arbitrary code. Note that the information disclosure issue could possibly be combined with other flaws to achieve arbitrary code execution.
04a92bb829de1fb8dac97dcd040a06a8fa9a0030cb8e56101023c6d8cd50f381Ubuntu Security Notice 1600-1 - Henrik Skupin, Jesse Ruderman, Christian Holler, Soroush Dalili and others discovered several memory corruption flaws in Firefox. If a user were tricked into opening a specially crafted web page, a remote attacker could cause Firefox to crash or potentially execute arbitrary code as the user invoking the program. David Bloom and Jordi Chancel discovered that Firefox did not always properly handle the select element. A remote attacker could exploit this to conduct URL spoofing and clickjacking attacks. Various other issues were also addressed.
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