A few hours ago, Canonical published several Ubuntu security notices to inform users about the availability of new Linux kernel versions for all supported Ubuntu releases.
The latest update is small but important, and appears to fix a recent security issue that could allow a local attacker to crash the vulnerable system or run programs as an administrator (root). Affected Ubuntu releases include Ubuntu 12.04 LTS, Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, and Ubuntu 16.10.
“It was discovered that the xfrm framework for transforming packets in the Linux kernel did not properly validate data received from user space. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code with administrative privileges,” reads one of the Ubuntu security notices.
Users are urged to update their installations as soon as possible
Canonical says that the problem can be corrected if the use… (read more)
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