Gentoo Linux Security Advisory 202202-1 - Multiple vulnerabilities have been found in WebkitGTK+, the worst of which could result in the arbitrary execution of code. Versions less than 2.34.4 are affected.
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Apple Security Advisory 2021-05-03-2 - iOS 12.5.3 addresses buffer overflow, code execution, integer overflow, and use-after-free vulnerabilities.
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