Canonical today released several security updates for Ubuntu 15.10 and Ubuntu 15.10 for Raspberry Pi 2. All updates are upgrading the operating system kernel.
Specifically, they repair a total of five vulnerabilities in the core discovered by various hackers.
Το πρώτο ελάττωμα ασφαλείας ανακαλύφθηκε στο σύστημα αρχείων OverlayFS του Linux kernel, which allows a local attacker to become root.
The second issue concerns the Linux kernel OverlayFS file system again, which again allows a local attacker to extend its privileges.
The third security issue concerns the way the kernel imposes the rlimits. The error allowed local attackers to carry out DoS (Denial-of-Service) attacks.
The fourth vulnerability was discovered on FUSE's Linux kernel FUSE (Filesystem in Userspace). The vulnerability once again allowed a local attacker to carry out DoS attacks.
The latest security flaw was discovered in the Linux LookKeeBlue TLB (Translation Lookaside Buffer) of the Linux kernel and could allow sensitive information leakage or DoS (denial-of-service) attacks.
Canonical urges all of them users of Ubuntu to instantly update their computers and devices.
After the updates are installed, a restart is required.
