Canonical published several security advisories to inform Ubuntu users about new kernel versions for their Ubuntu 16.04 LTS (Xenial Xerus) and Ubuntu 16.10 (Yakkety Yak) operating systems.
It would appear that this is the first HWE (Hardware Enablement) kernel that Canonical releases for both Ubuntu 16.10 and Ubuntu 16.04.2 LTS users, patching the Linux 4.8 kernel packages to address a single security vulnerability that could allow a local attacker to elevate his/her privileges or crash the affected system via DoS attack.
“Alexander Popov discovered that the N_HDLC line discipline implementation in the Linux kernel contained a double-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly gain administrative privileges,” reads Ubuntu Security Notice USN-3221-1.
Ubuntu 14.04.5 LTS and 12.04.5 LTS users also affected
Canonical also backported th… (read more)
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