Articles by KENNETH

USN-3360-2: Linux kernel (Trusty HWE) vulnerabilities Ubuntu Security Notice USN-3360-2 21st July, 2017 linux-lts-trusty vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 12.04 LTS Summary Several security issues were fixed in the Linux kernel. Software description linux-lts-trusty – Linux hardware enablement kernel from Trusty for Precise Details USN-3360-1 fixed vulnerabilities in the Linux kernel for Ubuntu 14.04LTS. This update provides the corresponding updates for the LinuxHardware Enablement (HWE) kernel from Ubuntu 14.04 LTS for Ubuntu12.04 ESM. It was discovered that the Linux kernel did not properly initialize a Wake-on-Lan data structure. A local attacker could use this to expose sensitiveinformation (kernel memory). (CVE-2014-9900) It was discovered that the Linux kernel did not properly restrict access to/proc/iomem. A local attacker could use this to expose sensitiveinformation. (CVE-2015-8944) It was discovered that a use-after-free vulnerability existed in [ more… ]

USN-3361-1: Linux kernel (HWE) vulnerabilities Ubuntu Security Notice USN-3361-1 21st July, 2017 linux-hwe vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 16.04 LTS Summary Several security issues were fixed in the Linux kernel. Software description linux-hwe – Linux hardware enablement (HWE) kernel linux-meta-hwe Details USN-3358-1 fixed vulnerabilities in the Linux kernel for Ubuntu 17.04.This update provides the corresponding updates for the Linux HardwareEnablement (HWE) kernel from Ubuntu 17.04 for Ubuntu 16.04 LTS. Pleasenote that this update changes the Linux HWE kernel to the 4.10 basedkernel from Ubuntu 17.04, superseding the 4.8 based HWE kernel fromUbuntu 16.10. Ben Harris discovered that the Linux kernel would strip extended privilegeattributes of files when performing a failed unprivileged system call. Alocal attacker could use this to cause a denial of service. (CVE-2015-1350) Ralf Spenneberg discovered that the ext4 implementation [ more… ]

USN-3360-1: Linux kernel vulnerabilities Ubuntu Security Notice USN-3360-1 21st July, 2017 linux vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 14.04 LTS Summary Several security issues were fixed in the Linux kernel. Software description linux – Linux kernel Details It was discovered that the Linux kernel did not properly initialize a Wake-on-Lan data structure. A local attacker could use this to expose sensitiveinformation (kernel memory). (CVE-2014-9900) It was discovered that the Linux kernel did not properly restrict access to/proc/iomem. A local attacker could use this to expose sensitiveinformation. (CVE-2015-8944) It was discovered that a use-after-free vulnerability existed in theperformance events and counters subsystem of the Linux kernel for ARM64. Alocal attacker could use this to cause a denial of service (system crash)or possibly execute arbitrary code. (CVE-2015-8955) It was discovered that the SCSI generic (sg) [ more… ]

USN-3359-1: Linux kernel vulnerabilities Ubuntu Security Notice USN-3359-1 20th July, 2017 linux, linux-raspi2 vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 16.10 Summary Several security issues were fixed in the Linux kernel. Software description linux – Linux kernel linux-raspi2 – Linux kernel for Raspberry Pi 2 Details It was discovered that the Linux kernel did not properly initialize a Wake-on-Lan data structure. A local attacker could use this to expose sensitiveinformation (kernel memory). (CVE-2014-9900) Dmitry Vyukov, Andrey Konovalov, Florian Westphal, and Eric Dumazetdiscovered that the netfiler subsystem in the Linux kernel mishandled IPv6packet reassembly. A local user could use this to cause a denial of service(system crash) or possibly execute arbitrary code. (CVE-2016-9755) Alexander Potapenko discovered a race condition in the Advanced Linux SoundArchitecture (ALSA) subsystem in the Linux kernel. A local attacker coulduse this [ more… ]