Canonical released earlier a new kernel security update for all supported Ubuntu Linux releases that appears to patch a vulnerability discovered recently in the upstream Linux kernel packages.
According to the Ubuntu Security Notice USN-3256-1 advisory, the system could be made to crash under certain conditions. The security issue (CVE-2017-7308) was discovered by Andrey Konovalov in Linux kernel’s AF_PACKET implementation, which incorrectly validated some block-size data.
This could allow a local attacker to crash the vulnerable system by causing a denial of service (DoS attack). Canonical says that the flaw can be patched if users update their Ubuntu Linux installations today to the newly released kernel versions listed in the security advisory for various supported Ubuntu releases.
Affected systems include Ubuntu 16.10 (Yakkety Yak), Ub… (read more)
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