Gentoo Linux Security Advisory 201904-7 - Multiple vulnerabilities have been found in Mozilla Thunderbird and Firefox, the worst of which could lead to the execution of arbitrary code. Versions less than 60.6.1 are affected.
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Red Hat Security Advisory 2018-3803-01 - Chromium is an open-source web browser, powered by WebKit. This update upgrades Chromium to version 71.0.3578.80. Issues addressed include buffer overflow and out of bounds write vulnerabilities.
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Debian Linux Security Advisory 4352-1 - Several vulnerabilities have been discovered in the chromium web browser.
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