Ubuntu Security Notice 3044-1 - Gustavo Grieco discovered an out-of-bounds read during XML parsing in some circumstances. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit this to cause a denial of service via application crash, or obtain sensitive information. Toni Huttunen discovered that once a favicon is requested from a site, the remote server can keep the network connection open even after the page is closed. A remote attacker could potentially exploit this to track users, resulting in information disclosure. Various other issues were also addressed.
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Debian Linux Security Advisory 3640-1 - Multiple security issues have been found in the Mozilla Firefox web implementation errors may lead to the execution of arbitrary code, cross-site scripting, information disclosure and bypass of the same-origin policy.
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Red Hat Security Advisory 2016-1551-01 - Mozilla Firefox is an open source web browser. This update upgrades Firefox to version 45.3.0 ESR. Security Fix: Multiple 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.
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