CVE-2016-5195 Patched
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Linux Kernels 4.8.3, 4.7.9 & 4.4.26 LTS Out to Patch "Dirty COW" Security Flaw
Today, October 20, 2016, Linux kernel maintainer Greg Kroah-Hartman announced three new maintenance updates for the Linux 4.8, 4.7, and 4.4 LTS kernel series, patching a major security vulnerability.
Known as "Dirty COW," the Linux kernel vulnerability documented at CVE-2016-5195 is, in fact, a nasty bug that could have allowed local users to write to any file they can read. The worst part is that the security flaw was present in various Linux kernel builds since at least the Linux 2.6.x series, which reached end of life in February this year.
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Canonical Patches Ancient "Dirty COW" Kernel Bug in All Supported Ubuntu OSes
As reported earlier, three new Linux kernel maintenance releases arrived for various Linux-based operating systems, patching a critical and ancient bug popularly known as "Dirty COW."
We already told you that the kernel vulnerability could be used by a local attacker to run programs as an administrator, and it looks like it also affects all supported Ubuntu releases, including Ubuntu 16.10 (Yakkety Yak), Ubuntu 16.04 LTS (Xenial Xerus), Ubuntu 14.04 LTS (Trusty Tahr), and Ubuntu 12.04 LTS (Precise Pangolin), as well as all of their official or unofficial derivatives running the same kernel builds.
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