Ubuntu Security Notice 2656-2 - USN-2656-1 fixed vulnerabilities in Firefox for Ubuntu 14.04 LTS and later releases. This update provides the corresponding update for Ubuntu 12.04 LTS. Karthikeyan Bhargavan discovered that NSS incorrectly handled state transitions for the TLS state machine. If a remote attacker were able to perform a man-in-the-middle attack, this flaw could be exploited to skip the ServerKeyExchange message and remove the forward-secrecy property. Looben Yan discovered 2 use-after-free issues when using XMLHttpRequest in some circumstances. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Firefox. Various other issues were also addressed.
328cec1a37ec3067650890b309d1dd0a9ac8e5ee91e22185327112346ae999c2Ubuntu Security Notice 2656-1 - Karthikeyan Bhargavan discovered that NSS incorrectly handled state transitions for the TLS state machine. If a remote attacker were able to perform a man-in-the-middle attack, this flaw could be exploited to skip the ServerKeyExchange message and remove the forward-secrecy property. Looben Yan discovered 2 use-after-free issues when using XMLHttpRequest in some circumstances. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service via application crash, or execute arbitrary code with the privileges of the user invoking Firefox. Various other issues were also addressed.
8b8e1309051b659a9010aa4da8be7f871c23e5dcdb455674eaf7979c0a9f13b8Debian Linux Security Advisory 3300-1 - Multiple security issues have been found in Iceweasel, Debian's version of the Mozilla Firefox web browser. Multiple memory safety errors, use-after-frees and other implementation errors may lead to the execution of arbitrary code or denial of service. This update also addresses a vulnerability in DHE key processing commonly known as the "LogJam" vulnerability.
08a75baa6d19215d3d2a5d49d4060518bf5bfaf92d3ae35cc528ef9d223d7ac1Red Hat Security Advisory 2015-1207-01 - 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.
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