Articles by KENNETH

USN-3917-1: snapd vulnerability snapd vulnerability A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 18.10 Ubuntu 18.04 LTS Ubuntu 16.04 LTS Ubuntu 14.04 LTS Summary An intended access restriction in snapd could be bypassed by strict mode snaps on 64 bit architectures. Software Description snapd – Daemon and tooling that enable snap packages Details The snapd default seccomp filter for strict mode snaps blocks the use of the ioctl() system call when used with TIOCSTI as the second argument to the system call. Jann Horn discovered that this restriction could be circumvented on 64 bit architectures. A malicious snap could exploit this to bypass intended access restrictions to insert characters into the terminal’s input queue. On Ubuntu, snapd typically will have already automatically refreshed itself to snapd 2.37.4 which is unaffected. Update instructions The problem can be [ more… ]

USN-3913-1: P7ZIP vulnerabilities p7zip vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 16.04 LTS Summary p7zip could be made to crash or run programs as your login if it opened a specially crafted file. Software Description p7zip – 7z file archiver with high compression ratio Details It was discovered that p7zip did not correctly handle certain malformed archives. If a user or automated system were tricked into processing a specially crafted archive with p7zip, then p7zip could be made to crash, possibly leading to abitrary code execution. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 16.04 LTS p7zip – 9.20.1~dfsg.1-4.2ubuntu0.1 p7zip-full – 9.20.1~dfsg.1-4.2ubuntu0.1 To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades. In general, a standard system update will make all the necessary changes. References CVE-2016-2335 [ more… ]